In the final episode of Fatal Error, Chris and Soroush go through some follow-up, then recap the news from WWDC.  59. Why did they even hire Chris?? Swift Unwrapped Ghost Animoji has a tongue! (h/t @parrots) Platforms State of the Union CodeRunner Steve S Smith Marzipan Thread Jake Marsh on Intents UNNotificationContent.threadIdentifier One of many articles on SMS hijacking via SS7 (search the Web for “SS7 SMS Hijack” for more) YubiKey Social engineering SMS code Chromium Touch ID second factor  (Tweet) Published after we recorded the episode: The Pixelbook’s power button can double as a U2F security key  Thank you for your support! Tweets &amp; photos from the live show at WWDC:  From @_ivancr From @_jessetipton From @jbradforddillon From @freak4pc

In the final episode of Fatal Error, Chris and Soroush go through some follow-up, then recap the news from WWDC. <ul> <li><a href="https://fatalerror.fm/episodes/2018/3/2/59-why-did-they-even-hire-chris" rel="nofollow" target="_blank">59</a><a href="https://fatalerror.fm/episodes/2018/3/2/59-why-did-they-even-hire-chris" rel="nofollow" target="_blank">. Why did they even hire Chris??</a></li> <li><a href="https://spec.fm/podcasts/swift-unwrapped" rel="nofollow" target="_blank">Swift</a> <a href="https://spec.fm/podcasts/swift-unwrapped" rel="nofollow" target="_blank">U</a><a href="https://spec.fm/podcasts/swift-unwrapped" rel="nofollow" target="_blank">nwrapped</a></li> <li><a href="https://dropbox.dzombak.com/fatalerror_fm/ghost-animoji.mov" rel="nofollow" target="_blank">G</a><a href="https://d3vv6lp55qjaqc.cloudfront.net/items/3c070F28303Y2L3y373t/ms-pUkGyf.mov?X-CloudApp-Visitor-Id=77584" rel="nofollow" target="_blank">host Animoji</a> <a href="https://d3vv6lp55qjaqc.cloudfront.net/items/3c070F28303Y2L3y373t/ms-pUkGyf.mov?X-CloudApp-Visitor-Id=77584" rel="nofollow" target="_blank">has a tongue!</a> (h/t @parrots)</li> <li><a href="https://developer.apple.com/videos/play/wwdc2018/102/" rel="nofollow" target="_blank">Platforms S</a><a href="https://developer.apple.com/videos/play/wwdc2018/102/" rel="nofollow" target="_blank">tate of the Union</a></li> <li><a href="https://coderunnerapp.com/" rel="nofollow" target="_blank">CodeRunner</a></li> <li><a href="https://twitter.com/stroughtonsmith/status/1004512752596148224" rel="nofollow" target="_blank">Steve S Smith Marzipan</a> <a href="https://twitter.com/stroughtonsmith/status/1004512752596148224" rel="nofollow" target="_blank">Thread</a></li> <li><a href="https://twitter.com/jakemarsh/status/1003811243260596224" rel="nofollow" target="_blank">Jake</a> <a href="https://twitter.com/jakemarsh/status/1003811243260596224" rel="nofollow" target="_blank">M</a><a href="https://twitter.com/jakemarsh/status/1003811243260596224" rel="nofollow" target="_blank">arsh</a> <a href="https://twitter.com/jakemarsh/status/1003811243260596224" rel="nofollow" target="_blank">on Intents</a></li> <li><a href="https://developer.apple.com/documentation/usernotifications/unnotificationcontent" rel="nofollow" target="_blank">UNNotificationContent.threadIdentifier</a></li> <li><a href="https://www.theverge.com/2017/9/18/16328172/sms-two-factor-authentication-hack-password-bitcoin" rel="nofollow" target="_blank">One of many articles on SMS hijacking via SS7</a> (search the Web for “SS7 SMS Hijack” for more)</li> <li><a href="https://www.yubico.com/why-yubico/for-individuals/" rel="nofollow" target="_blank">YubiKey</a></li> <li><a href="https://twitter.com/bitforth/status/996537727926620160" rel="nofollow" target="_blank">S</a><a href="https://twitter.com/bitforth/status/996537727926620160" rel="nofollow" target="_blank">ocial engineering SMS code</a></li> <li><a href="https://twitter.com/bruienne/status/996372927577763841" rel="nofollow" target="_blank">Chromium Touch ID second factor</a> <a href="https://twitter.com/bruienne/status/996372927577763841" rel="nofollow" target="_blank"></a> <a href="https://twitter.com/bruienne/status/996372927577763841" rel="nofollow" target="_blank">(Tweet)</a></li> <li>Published after we recorded the episode: <a href="https://9to5google.com/2018/06/08/pixelbook-power-button-u2f-security-key/" rel="nofollow" target="_blank">The Pixelbook’s power button can double as a U2F security key</a></li> </ul> Thank you for your support! Tweets &amp; photos from the live show at WWDC: <ul> <li><a href="https://twitter.com/_ivancr/status/1004378138262962176" rel="nofollow" target="_blank">From @_ivancr</a></li> <li><a href="https://twitter.com/_jessetipton/status/1004271100488908800" rel="nofollow" target="_blank">From @_jessetipton</a></li> <li><a href="https://twitter.com/jbradforddillon/status/1004230067117932545" rel="nofollow" target="_blank">From @jbradforddillon</a></li> <li><a href="https://twitter.com/freak4pc/status/1004220968334577665" rel="nofollow" target="_blank">From @freak4pc</a></li></ul>

70. The Finale

In the final episode of Fatal Error, Chris and Soroush go through some follow-up, then recap the news from WWDC.Tweets &amp; photos from the live show at WWDC:From @_ivancrFrom @_jessetiptonFrom @jbradforddillonFrom @freak4pc

In the final episode of Fatal Error, Chris and Soroush go through some follow-up, then recap the news from WWDC.Tweets &amp; photos from the live show at WWDC:<ul><li><a href="https://twitter.com/_ivancr/status/1004378138262962176" rel="nofollow" target="_blank">From @_ivancr</a></li><li><a href="https://twitter.com/_jessetipton/status/1004271100488908800" rel="nofollow" target="_blank">From @_jessetipton</a></li><li><a href="https://twitter.com/jbradforddillon/status/1004230067117932545" rel="nofollow" target="_blank">From @jbradforddillon</a></li><li><a href="https://twitter.com/freak4pc/status/1004220968334577665" rel="nofollow" target="_blank">From @freak4pc</a></li></ul>

Teaser: 70. The Finale

This week, Chris and Soroush talk about null, the billion dollar mistake. They talk about its past, its present and maybe even its future. Nice!enum Brain {    case small    case medium    case large    case galaxy    case universe}Liskov Substitution PrincipleNull References: The Billion Dollar MistakePython on Google App EnginePEP 484: Type HintsThe Definitive Reference To Why Maybe Is Better Than NullThat One Optional PropertyThe algebra (and calculus!) of algebraic data typesPoint-Free episode 4: Algebraic Data TypesOptional definitionSubEthaEdit

This week, Chris and Soroush talk about null, the billion dollar mistake. They talk about its past, its present and maybe even its future. Nice!enum Brain {     case small     case medium     case large     case galaxy     case universe }<ul><li><a href="https://en.wikipedia.org/wiki/Liskov_substitution_principle" rel="nofollow" target="_blank">Liskov Substitution Principle</a></li><li><a href="https://www.infoq.com/presentations/Null-References-The-Billion-Dollar-Mistake-Tony-Hoare" rel="nofollow" target="_blank">Null References: The Billion Dollar Mistake</a></li><li><a href="https://cloud.google.com/appengine/docs/python/" rel="nofollow" target="_blank">Python on Google App Engine</a></li><li><a href="https://www.python.org/dev/peps/pep-0484/" rel="nofollow" target="_blank">PEP 484: Type Hints</a></li><li><a href="http://www.nickknowlson.com/blog/2013/04/16/why-maybe-is-better-than-null/" rel="nofollow" target="_blank">The Definitive Reference To Why Maybe Is Better Than Null</a></li><li><a href="http://khanlou.com/2017/03/that-one-optional-property/" rel="nofollow" target="_blank">That One Optional Property</a></li><li><a href="https://codewords.recurse.com/issues/three/algebra-and-calculus-of-algebraic-data-types" rel="nofollow" target="_blank">The algebra</a><a href="https://codewords.recurse.com/issues/three/algebra-and-calculus-of-algebraic-data-types" rel="nofollow" target="_blank"> </a><a href="https://codewords.recurse.com/issues/three/algebra-and-calculus-of-algebraic-data-types" rel="nofollow" target="_blank">(and</a><a href="https://codewords.recurse.com/issues/three/algebra-and-calculus-of-algebraic-data-types" rel="nofollow" target="_blank"> calculus!) of algebraic data types</a></li><li><a href="https://www.pointfree.co/episodes/ep4-algebraic-data-types" rel="nofollow" target="_blank">Point-Free episode 4: </a><a href="https://www.pointfree.co/episodes/ep4-algebraic-data-types" rel="nofollow" target="_blank">Algebraic Data Types</a></li><li><a href="https://github.com/apple/swift/blob/master/stdlib/public/core/Optional.swift#L122" rel="nofollow" target="_blank">Optional definition</a></li><li><a href="https://www.codingmonkeys.de/subethaedit/" rel="nofollow" target="_blank">SubEthaEdit</a></li></ul>

69. (null)

This week, Chris and Soroush talk about something engineers are stereotypically bad at: negotiating. In particular, we really recommend setting aside half an hour to read the first link in the show notes:  Patrick McKenzie: Salary Negotiation: Make More Money, Be More Valued Stephanie Hurlburt: “Just a PSA, I know of many people  (Exact #? Hm. Over a hundred?) who are programmers making high six figures a year. …”

This week, Chris and Soroush talk about something engineers are stereotypically bad at: negotiating. In particular, we really recommend setting aside half an hour to read the first link in the show notes: <ul> <li>Patrick McKenzie: <a href="https://www.kalzumeus.com/2012/01/23/salary-negotiation/" rel="nofollow" target="_blank">Salary Negotiation: Make More Money, Be More Valued</a></li> <li>Stephanie Hurlburt: <a href="https://twitter.com/sehurlburt/status/992552870997147648" rel="nofollow" target="_blank">“Just</a> <a href="https://twitter.com/sehurlburt/status/992552870997147648" rel="nofollow" target="_blank">a PSA, I know of many people</a> <a href="https://twitter.com/sehurlburt/status/992552870997147648" rel="nofollow" target="_blank"></a> <a href="https://twitter.com/sehurlburt/status/992552870997147648" rel="nofollow" target="_blank">(Exact</a> <a href="https://twitter.com/sehurlburt/status/992552870997147648" rel="nofollow" target="_blank">#? Hm. Over a hundred?) who are programmers making high six figures a year. …”</a></li></ul>

68. Negotiating

This week, Chris and Soroush talk about something engineers are stereotypically bad at: negotiating.Get a new Fatal Error episode every week by becoming a supporter at patreon.com/fatalerror.

This week, Chris and Soroush talk about something engineers are stereotypically bad at: negotiating.Get a new Fatal Error episode every week by becoming a supporter at <a href="https://www.patreon.com/fatalerror" rel="nofollow" target="_blank">patreon.com/fatalerror</a>.

Teaser: 68. Negotiating

Soroush and Chris share some sad news, talk about Soroush's first official Swift Evolution proposal, and a post about giving presentations by Dave DeLong.Soroush’s pitch: `count(where:)` on SequenceE66: Sequence and Collection and Iterator, Oh MyHarlan Haskins &amp; Robert Widmann - Becoming An Effective Contributor to SwiftHow to Read the Swift Standard Library SourceSoroush’s Swift PRSoroush’s Swift Evolution proposal PRSwift Unwrapped: 56: SE-206 Hashable EnhancementsChris Lattner’s comment on Soroush’s pitchE60: Soroush in the Standard LibrarySoroush’s Lazy dropLast implementationDave DeLong: You should give that presentationProductivity Strategies: Exploration vs ExploitationMulti-armed bandit experiments

Soroush and Chris share some sad news, talk about Soroush's first official Swift Evolution proposal, and a post about giving presentations by Dave DeLong.<ul><li><a href="https://forums.swift.org/t/count-where-on-sequence/11186" rel="nofollow" target="_blank">Soroush’s pitch: `count(where:)` on Sequence</a></li><li><a href="https://www.patreon.com/posts/66-sequence-and-18440367" rel="nofollow" target="_blank">E66: </a><a href="https://www.patreon.com/posts/66-sequence-and-18440367" rel="nofollow" target="_blank">Sequence and Collection and Iterator, Oh My</a></li><li><a href="https://www.youtube.com/watch?v=oGJKsp-pZPk" rel="nofollow" target="_blank">Harlan Haskins &amp; Robert Widmann - Becoming An Effective Contributor to Swift</a></li><li><a href="https://oleb.net/blog/2016/10/swift-stdlib-source/" rel="nofollow" target="_blank">How to Read the Swift Standard Library Source</a></li><li><a href="https://github.com/apple/swift/pull/16099/files" rel="nofollow" target="_blank">Soroush’s Swift PR</a></li><li><a href="https://github.com/apple/swift-evolution/pull/840" rel="nofollow" target="_blank">Soroush’s Swift Evolution proposal PR</a></li><li><a href="https://spec.fm/podcasts/swift-unwrapped/136614" rel="nofollow" target="_blank">Swift Unwrapped: 56: SE-206 Hashable Enhancements</a></li><li><a href="https://forums.swift.org/t/count-where-on-sequence/11186/36" rel="nofollow" target="_blank">Chris Lattner’s comment on Soroush’s pitch</a></li><li><a href="https://www.patreon.com/posts/60-soroush-in-17436611" rel="nofollow" target="_blank">E60: Soroush in the Standard Library</a></li><li><a href="https://gist.github.com/khanlou/34108c7aa0f4068e807d7f163bbb379c" rel="nofollow" target="_blank">Soroush’s Lazy dropLast implementation</a></li><li><a href="https://davedelong.com/blog/2018/04/29/you-should-give-that-presentation/" rel="nofollow" target="_blank">Dave DeLong: You should give that presentation</a></li><li><a href="https://facilethings.com/blog/en/exploration-vs-exploitation" rel="nofollow" target="_blank">Productivity Strategies: Exploration vs Exploitation</a></li><li><a href="https://support.google.com/analytics/answer/2844870?hl=en" rel="nofollow" target="_blank">Multi-armed bandit experiments</a></li></ul>

67. The Whatever Planet From The Sun

 Soroush’s Sequence and Collection talk from Playgrounds last year [Pitch] Remove the single-pass requirement on Sequence Cryptographically secure pseudorandom number generator Ben cohen / @airspeedswift Ben’s thread on Twitter Dave Abraham’s Github repo  AnySequence / type erasers The Fencepost Problem Soroush’s Galaxy Brain meme sequence(first:next:) Nate Cook / @nnnnnnnn Soroush’s pull request for the count(where:)implementation Soroush’s pull request for the count(where:)proposal

<ul> <li><a href="https://www.skilled.io/u/playgroundscon/sequence-and-collection-swift" rel="nofollow" target="_blank">Soroush’s Sequence and Collection talk from Playgrounds last year</a></li> <li><a href="https://forums.swift.org/t/pitch-remove-the-single-pass-requirement-on-sequence/7964" rel="nofollow" target="_blank">[Pitch] Remove the single-pass requirement on Sequence</a></li> <li><a href="https://en.wikipedia.org/wiki/Cryptographically_secure_pseudorandom_number_generator" rel="nofollow" target="_blank">Cryptographically secure pseudorandom number generator</a></li> <li><a href="https://twitter.com/airspeedswift" rel="nofollow" target="_blank">Ben cohen /</a> <a href="https://twitter.com/airspeedswift" rel="nofollow" target="_blank">@</a><a href="https://twitter.com/airspeedswift" rel="nofollow" target="_blank">airspeedswift</a></li> <li><a href="https://twitter.com/AirspeedSwift/status/964611918496280576" rel="nofollow" target="_blank">Ben’s thread on Twitter</a></li> <li><a href="https://github.com/dabrahams/WhitherSequence" rel="nofollow" target="_blank">Dave Abraham’s Github repo</a> </li> <li><a href="http://robnapier.net/erasure" rel="nofollow" target="_blank">AnySequence / type erasers</a></li> <li><a href="https://petercai.com/the-fencepost-problem/" rel="nofollow" target="_blank">The Fencepost Problem</a></li> <li><a href="https://twitter.com/khanlou/status/988865551509458947" rel="nofollow" target="_blank">Soroush’s Galaxy Brain meme</a></li> <li><a href="https://developer.apple.com/documentation/swift/2015879-sequence" rel="nofollow" target="_blank">sequence</a><a href="https://developer.apple.com/documentation/swift/2015879-sequence" rel="nofollow" target="_blank">(</a><a href="https://developer.apple.com/documentation/swift/2015879-sequence" rel="nofollow" target="_blank">first</a><a href="https://developer.apple.com/documentation/swift/2015879-sequence" rel="nofollow" target="_blank">:</a><a href="https://developer.apple.com/documentation/swift/2015879-sequence" rel="nofollow" target="_blank">next</a><a href="https://developer.apple.com/documentation/swift/2015879-sequence" rel="nofollow" target="_blank">:)</a></li> <li><a href="https://twitter.com/nnnnnnnn" rel="nofollow" target="_blank">Nate Cook /</a> <a href="https://twitter.com/nnnnnnnn" rel="nofollow" target="_blank">@</a><a href="https://twitter.com/nnnnnnnn" rel="nofollow" target="_blank">nnnnnnnn</a></li> <li><a href="https://github.com/apple/swift/pull/16099" rel="nofollow" target="_blank">Soroush’s pull request for the</a> <a href="https://github.com/apple/swift/pull/16099" rel="nofollow" target="_blank">count(where:)</a><a href="https://github.com/apple/swift/pull/16099" rel="nofollow" target="_blank">implementation</a></li> <li><a href="https://github.com/apple/swift-evolution/pull/840" rel="nofollow" target="_blank">Soroush’s pull request for the</a> <a href="https://github.com/apple/swift-evolution/pull/840" rel="nofollow" target="_blank">count(where:)</a><a href="https://github.com/apple/swift-evolution/pull/840" rel="nofollow" target="_blank">proposal</a></li></ul>

66. Sequence and Collection and Iterator, Oh My

Soroush and Chris talk about Sequences, Collections, and Swift Evolution drama.Get a new Fatal Error episode every week by becoming a supporter at patreon.com/fatalerror.

Soroush and Chris talk about Sequences, Collections, and Swift Evolution drama.Get a new Fatal Error episode every week by becoming a supporter at <a href="https://www.patreon.com/fatalerror" rel="nofollow" target="_blank">patreon.com/fatalerror</a>.

Teaser: 66. Sequence and Collection and Iterator, Oh My

Your Calendrical Fallacy Is...iOS 11.2.6 DateFormatter.date returns nil for cities that observe Brasília Summer TimePub quiz question,"How many time zones are there"I was still explaining to my fellow pub attendees about the complexities of time zones by the time the answer came aroundWhere is the extra 75 seconds coming from?I think a great interview question is“how do you compute the length of a string?” If the candidate responds by asking“what do you mean by‘length’ and what do you mean by‘string’?” they pass —  @txsectorBig-O NotationOle Begemann: Strings in Swift 4 (explains how family emoji are composed of person emoji + joiners)Ligatures in Unicode (Wikipedia)Accidentally QuadraticSoroush: Safety in SwiftSpoiler: Soroush’s Word Ladder SolutionBackspacing emoji composed of multiple codepoints in Google Docs:

<ul><li><a href="http://yourcalendricalfallacyis.com/" rel="nofollow" target="_blank">Your Calendrical Fallacy Is...</a></li><li><a href="https://stackoverflow.com/questions/49438798/ios-11-2-6-dateformatter-date-returns-nil-for-cities-that-observe-bras%C3%ADlia-summe/49457933" rel="nofollow" target="_blank">iOS 11.2.6 DateFormatter.date returns nil for cities that observe Brasília Summer Time</a></li><li><a href="https://twitter.com/qntm/status/897944477633056771" rel="nofollow" target="_blank">Pub quiz question,</a><a href="https://twitter.com/qntm/status/897944477633056771" rel="nofollow" target="_blank">"</a><a href="https://twitter.com/qntm/status/897944477633056771" rel="nofollow" target="_blank">How many time zones are there"</a><ul><li><a href="https://twitter.com/qntm/status/897945148973174784" rel="nofollow" target="_blank">I was still explaining to my fellow pub attendees about the complexities of time zones by the time the answer came around</a></li></ul></li><li><a href="https://stackoverflow.com/questions/21921589/where-is-the-extra-75-seconds-coming-from" rel="nofollow" target="_blank">Where is the extra 75 seconds coming from?</a></li><li><a href="https://twitter.com/txsector/status/963123420488646656" rel="nofollow" target="_blank">I think a great interview question is</a><a href="https://twitter.com/txsector/status/963123420488646656" rel="nofollow" target="_blank">“</a><a href="https://twitter.com/txsector/status/963123420488646656" rel="nofollow" target="_blank">how do you compute the length of a string?” If the candidate responds by asking</a><a href="https://twitter.com/txsector/status/963123420488646656" rel="nofollow" target="_blank">“</a><a href="https://twitter.com/txsector/status/963123420488646656" rel="nofollow" target="_blank">what do you mean by</a><a href="https://twitter.com/txsector/status/963123420488646656" rel="nofollow" target="_blank">‘</a><a href="https://twitter.com/txsector/status/963123420488646656" rel="nofollow" target="_blank">length’ and what do you mean by</a><a href="https://twitter.com/txsector/status/963123420488646656" rel="nofollow" target="_blank">‘</a><a href="https://twitter.com/txsector/status/963123420488646656" rel="nofollow" target="_blank">string’?” they pass</a> —  @txsector</li><li><a href="https://rob-bell.net/2009/06/a-beginners-guide-to-big-o-notation/" rel="nofollow" target="_blank">Big-O Notation</a></li><li><a href="https://oleb.net/blog/2017/11/swift-4-strings/" rel="nofollow" target="_blank">Ole Begemann: Strings in Swift 4</a> (explains how family emoji are composed of person emoji + joiners)</li><li><a href="https://en.wikipedia.org/wiki/Typographic_ligature#Ligatures_in_Unicode_(Latin_alphabets)" rel="nofollow" target="_blank">Ligatures in Unicode</a> (Wikipedia)</li><li><a href="https://accidentallyquadratic.tumblr.com/" rel="nofollow" target="_blank">Accidentally Quadratic</a></li><li>Soroush: <a href="http://khanlou.com/2017/04/safety-in-swift/" rel="nofollow" target="_blank">Safety in Swift</a></li><li>Spoiler: <a href="https://gist.github.com/khanlou/ce9a6ed4310dfbbcf8ab4b80692ead58" rel="nofollow" target="_blank">Soroush’s Word Ladder Solution</a></li></ul>Backspacing emoji composed of multiple codepoints in Google Docs:

65. Times That Do Not Exist

This week, Chris and Soroush review what inheritance in OOP is good for … and the problems it brings with it. Also: an update on the lights in Soroush’s bathroom.  Chris’s Alexa Aircraft Radar skill Apoptosis Episode 50: Internet of Things Wemo Mini Smart Plug Sylvania HomeKit Bulbs Philips Tap Switch Hue Labs Toggle Behavior Why inheritance never made any sense Chris: Cocoa’s mutable-subclass pattern is an antipattern Chris: Multiple Inheritance vs. Traits or Protocol Extensions Ruby Forwardable module  (def_delegator and def_delegators) Objective-C forwardingTargetForSelector: Multiple Inheritance in C++ and the Diamond Problem The Ghost of Swift Bugs Future Slava Pestov’s Twitter thread

This week, Chris and Soroush review what inheritance in OOP is good for … and the problems it brings with it. Also: an update on the lights in Soroush’s bathroom. <ul> <li><a href="https://www.radarskill.dzombak.com/" rel="nofollow" target="_blank">Chris’s Alexa</a> <a href="https://www.radarskill.dzombak.com/" rel="nofollow" target="_blank">Aircraft R</a><a href="https://www.radarskill.dzombak.com/" rel="nofollow" target="_blank">adar skill</a></li> <li><a href="https://en.wikipedia.org/wiki/Apoptosis" rel="nofollow" target="_blank">Apoptosis</a></li> <li><a href="https://www.patreon.com/posts/50-internet-of-15324691" rel="nofollow" target="_blank">Episode 50: Internet of Things</a></li> <li><a href="https://www.amazon.com/gp/product/B01NBI0A6R" rel="nofollow" target="_blank">Wemo Mini Smart Plug</a></li> <li><a href="https://consumer.sylvania.com/our-products/smart/smart-connected-lighting/index.jsp" rel="nofollow" target="_blank">Sylvania HomeKit Bulbs</a></li> <li><a href="https://www2.meethue.com/en-us/p/hue-tap-switch/046677456696" rel="nofollow" target="_blank">Philips Tap Switch</a></li> <li><a href="http://labs.meethue.com/formulas/huelabs/tap-toggle" rel="nofollow" target="_blank">Hue Labs Toggle Behavior</a></li> <li><a href="https://www.sicpers.info/2018/03/why-inheritance-never-made-any-sense/" rel="nofollow" target="_blank">Why inheritance never made any sense</a></li> <li>Chris: <a href="https://www.dzombak.com/blog/2015/05/Cocoa-s-mutable-subclass-pattern-is-an-antipattern.html" rel="nofollow" target="_blank">Cocoa’s mutable-subclass pattern is an antipattern</a></li> <li>Chris: <a href="https://www.dzombak.com/blog/2015/06/Multiple-Inheritance-vs--Traits-or-Protocol-Extensions.html" rel="nofollow" target="_blank">Multiple Inheritance vs. Traits or Protocol Extensions</a></li> <li><a href="http://ruby-doc.org/stdlib-2.0.0/libdoc/forwardable/rdoc/Forwardable.html#method-i-def_delegator" rel="nofollow" target="_blank">Ruby Forwardable module</a> <a href="http://ruby-doc.org/stdlib-2.0.0/libdoc/forwardable/rdoc/Forwardable.html#method-i-def_delegator" rel="nofollow" target="_blank"></a> <a href="http://ruby-doc.org/stdlib-2.0.0/libdoc/forwardable/rdoc/Forwardable.html#method-i-def_delegator" rel="nofollow" target="_blank">(</a><a href="http://ruby-doc.org/stdlib-2.0.0/libdoc/forwardable/rdoc/Forwardable.html#method-i-def_delegator" rel="nofollow" target="_blank">def_delegator and def_delegators)</a></li> <li><a href="https://developer.apple.com/documentation/objectivec/nsobject/1418855-forwardingtargetforselector" rel="nofollow" target="_blank">Objective-C forwardingTargetForSelector:</a></li> <li><a href="https://medium.freecodecamp.org/multiple-inheritance-in-c-and-the-diamond-problem-7c12a9ddbbec" rel="nofollow" target="_blank">Multiple Inheritance in C++ and the Diamond Problem</a></li> <li><a href="https://nomothetis.svbtle.com/the-ghost-of-swift-bugs-future" rel="nofollow" target="_blank">The Ghost of Swift Bugs Future</a></li> <li><a href="https://twitter.com/slava_pestov/status/982849139418345473" rel="nofollow" target="_blank">Slava Pestov’s Twitter thread</a></li></ul>

64. AI Apoptosis

Fatal Error is a weekly show hosted by software developers Soroush Khanlou and Chris Dzombak. We discuss topics at the cutting edge of iOS software architecture, Swift, and best practices.

Super awesome podcast, these guys are great. Every episode is valuable and fun to listen to. Please come back!!

Why’d you stop?!?!?!

Excellent Podcast covering development details and architectures patterns using Swift. Nice done !!

Outstanding !!

Fatal Error

This week, Chris and Soroush finally get to the topic they've been waiting for since they started the podcast: reactive programming. Chris gives a high level intro, and they dive into Q&amp;A.   How Chris and Soroush met Soroush: “Reactive Cocoa” Chris: “Objective-C” Chris: “The Value of ReactiveCocoa” Soroush: “In Defense of Clarity” Then, beers.   RxMarbles RACMarbles, which is RxMarbles with RAC terminology!   A General Theory of Reactivity Accidental vs. Essential Complexity (Paper PDF) Reactive tooling for iOS/macOS ReactiveCocoa RxSwift ReactiveKit (née Bond) Interstellar   The ReactiveCocoa repository contains excellent documentation for the framework and reactive concepts in general Design Guidelines Framework Overview Basic Operators   Redux The introduction to Reactive Programming you've been missing ReactiveCocoa Concepts for Asynchronous Libraries NSBlock   The Spatial/Temporal/Singular/Plural table from A General Theory of Reactivity.

This week, Chris and Soroush finally get to the topic they've been waiting for since they started the podcast: reactive programming. Chris gives a high level intro, and they dive into Q&amp;A. <ul> <li>How Chris and Soroush met<ul> <li>Soroush: “<a href="http://khanlou.com/2014/02/reactive-cocoa/" rel="nofollow" target="_blank">Reactive Cocoa</a>”</li> <li>Chris: “<a href="https://www.dzombak.com/blog/2014/02/objective-c.html" rel="nofollow" target="_blank">Objective-C</a>”</li> <li>Chris: “<a href="https://www.dzombak.com/blog/2014/02/the-value-of-reactivecocoa.html" rel="nofollow" target="_blank">The Value of ReactiveCocoa</a>”</li> <li>Soroush: “<a href="http://khanlou.com/2014/02/in-defense-of-clarity/" rel="nofollow" target="_blank">In Defense of Clarity</a>”</li> <li>Then, <a href="https://twitter.com/khanlou/statuses/435441016418865152?tw_i=435441016418865152&amp;tw_e=details&amp;tw_p=archive" rel="nofollow" target="_blank">beers</a>.</li> </ul> </li> <li><a href="http://rxmarbles.com/" rel="nofollow" target="_blank">RxMarbles</a><ul> <li><a href="http://neilpa.me/rac-marbles/" rel="nofollow" target="_blank">RACMarbles</a>, which is RxMarbles with RAC terminology!</li> </ul> </li> <li><a href="https://github.com/kriskowal/gtor" rel="nofollow" target="_blank">A General Theory of Reactivity</a></li> <li><a href="https://en.wikipedia.org/wiki/No_Silver_Bullet" rel="nofollow" target="_blank">Accidental vs. Essential Complexity</a> (<a href="http://worrydream.com/refs/Brooks-NoSilverBullet.pdf" rel="nofollow" target="_blank">Paper PDF</a>)</li> <li>Reactive tooling for iOS/macOS<ul> <li><a href="https://github.com/ReactiveCocoa/ReactiveCocoa" rel="nofollow" target="_blank">ReactiveCocoa</a></li> <li><a href="https://github.com/ReactiveX/RxSwift" rel="nofollow" target="_blank">RxSwift</a></li> <li><a href="https://github.com/ReactiveKit/ReactiveKit" rel="nofollow" target="_blank">ReactiveKit</a> (née <a href="https://github.com/SwiftBond/Bond" rel="nofollow" target="_blank">Bond</a>)</li> <li><a href="https://github.com/JensRavens/Interstellar" rel="nofollow" target="_blank">Interstellar</a></li> </ul> </li> <li>The ReactiveCocoa repository contains excellent <a href="https://github.com/ReactiveCocoa/ReactiveCocoa/tree/master/Documentation" rel="nofollow" target="_blank">documentation</a> for the framework and reactive concepts in general<ul> <li><a href="https://github.com/ReactiveCocoa/ReactiveCocoa/blob/master/Documentation/DesignGuidelines.md" rel="nofollow" target="_blank">Design Guidelines</a></li> <li><a href="https://github.com/ReactiveCocoa/ReactiveCocoa/blob/master/Documentation/FrameworkOverview.md" rel="nofollow" target="_blank">Framework Overview</a></li> <li><a href="https://github.com/ReactiveCocoa/ReactiveCocoa/blob/master/Documentation/BasicOperators.md" rel="nofollow" target="_blank">Basic Operators</a></li> </ul> </li> <li><a href="https://github.com/reactjs/redux" rel="nofollow" target="_blank">Redux</a></li> <li><a href="https://gist.github.com/staltz/868e7e9bc2a7b8c1f754" rel="nofollow" target="_blank">The introduction to Reactive Programming you've been missing</a></li> <li><a href="https://spin.atomicobject.com/2015/03/19/reactivecocoa-asynchronous-libraries/" rel="nofollow" target="_blank">ReactiveCocoa Concepts for Asynchronous Libraries</a></li> <li><a href="https://github.com/nst/iOS-Runtime-Headers/blob/master/Frameworks/CoreFoundation.framework/NSBlock.h" rel="nofollow" target="_blank">NSBlock</a></li> </ul> <a href="https://github.com/kriskowal/gtor#a-general-theory-of-reactivity" rel="nofollow" target="_blank"></a> The Spatial/Temporal/Singular/Plural table from A General Theory of Reactivity.

5. Reactive Programming

After an update on Chris's bread project, Soroush tells Chris about Firebase Cloud Functions, and we discuss deduplicating some report-generation code in Soroush's current project.Saltie's FocacciaChris’s breadCensysEpisode 44: Grab BagFirebase AnalyticsFirebase Realtime DatabaseFirebase StorageFirebase Cloud FunctionsAWS LambdaParse (Wikipedia)ES7 Async/AwaitBabeltoLocaleDateString()React NativeSuperdistribution - Brad CoxChris Lattner: Concurrency in Swift: One approachMozilla Hacks: Why WebAssembly is Faster Than asm.jsJavaScriptCoreCertificate Transparency

After an update on Chris's bread project, Soroush tells Chris about Firebase Cloud Functions, and we discuss deduplicating some report-generation code in Soroush's current project.<ul><li><a href="http://food52.com/recipes/28786-saltie-s-focaccia" rel="nofollow" target="_blank">Saltie's Focaccia</a></li><li><a href="https://www.instagram.com/p/BdX5rkqnghu/?taken-by=dzombak" rel="nofollow" target="_blank">Chris’s bread</a></li><li><a href="https://censys.io" rel="nofollow" target="_blank">Censys</a></li><li><a href="https://www.patreon.com/posts/44-grab-bag-14532818" rel="nofollow" target="_blank">Episode 44: Grab Bag</a></li><li><a href="https://firebase.google.com/docs/analytics/" rel="nofollow" target="_blank">F</a><a href="https://firebase.google.com/docs/analytics/" rel="nofollow" target="_blank">irebase </a><a href="https://firebase.google.com/docs/analytics/" rel="nofollow" target="_blank">A</a><a href="https://firebase.google.com/docs/analytics/" rel="nofollow" target="_blank">nalytics</a></li><li><a href="https://firebase.google.com/docs/database/" rel="nofollow" target="_blank">F</a><a href="https://firebase.google.com/docs/database/" rel="nofollow" target="_blank">irebase </a><a href="https://firebase.google.com/docs/database/" rel="nofollow" target="_blank">R</a><a href="https://firebase.google.com/docs/database/" rel="nofollow" target="_blank">ealtime </a><a href="https://firebase.google.com/docs/database/" rel="nofollow" target="_blank">D</a><a href="https://firebase.google.com/docs/database/" rel="nofollow" target="_blank">atabase</a></li><li><a href="https://firebase.google.com/docs/storage/" rel="nofollow" target="_blank">F</a><a href="https://firebase.google.com/docs/storage/" rel="nofollow" target="_blank">irebase </a><a href="https://firebase.google.com/docs/storage/" rel="nofollow" target="_blank">S</a><a href="https://firebase.google.com/docs/storage/" rel="nofollow" target="_blank">torage</a></li><li><a href="https://firebase.google.com/docs/functions/" rel="nofollow" target="_blank">Firebase Cloud Functions</a></li><li><a href="https://aws.amazon.com/lambda/" rel="nofollow" target="_blank">AWS Lambda</a></li><li><a href="https://en.wikipedia.org/wiki/Parse_(platform)" rel="nofollow" target="_blank">Parse</a><a href="https://en.wikipedia.org/wiki/Parse_(platform)" rel="nofollow" target="_blank"> </a><a href="https://en.wikipedia.org/wiki/Parse_(platform)" rel="nofollow" target="_blank">(</a><a href="https://en.wikipedia.org/wiki/Parse_(platform)" rel="nofollow" target="_blank">Wikipedia)</a></li><li><a href="http://rossboucher.com/await/#/" rel="nofollow" target="_blank">ES7 Async/Await</a></li><li><a href="https://babeljs.io" rel="nofollow" target="_blank">B</a><a href="https://babeljs.io" rel="nofollow" target="_blank">abel</a></li><li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleDateString" rel="nofollow" target="_blank">toLocaleDateString()</a></li><li><a href="https://facebook.github.io/react-native/" rel="nofollow" target="_blank">R</a><a href="https://facebook.github.io/react-native/" rel="nofollow" target="_blank">eact </a><a href="https://facebook.github.io/react-native/" rel="nofollow" target="_blank">N</a><a href="https://facebook.github.io/react-native/" rel="nofollow" target="_blank">ative</a></li><li><a href="http://www.alamut.com/subj/economics/misc/superDistribution.html" rel="nofollow" target="_blank">Superdistribution</a><a href="http://www.alamut.com/subj/economics/misc/superDistribution.html" rel="nofollow" target="_blank"> </a><a href="http://www.alamut.com/subj/economics/misc/superDistribution.html" rel="nofollow" target="_blank">-</a><a href="http://www.alamut.com/subj/economics/misc/superDistribution.html" rel="nofollow" target="_blank"> Brad Cox</a></li><li><a href="https://gist.github.com/lattner/31ed37682ef1576b16bca1432ea9f782" rel="nofollow" target="_blank">Chris Lattner: </a><a href="https://gist.github.com/lattner/31ed37682ef1576b16bca1432ea9f782" rel="nofollow" target="_blank">Concurrency in Swift: One approach</a></li><li><a href="https://hacks.mozilla.org/2017/03/why-webassembly-is-faster-than-asm-js/" rel="nofollow" target="_blank">Mozilla Hacks: </a><a href="https://hacks.mozilla.org/2017/03/why-webassembly-is-faster-than-asm-js/" rel="nofollow" target="_blank">Why WebAssembly is Faster Than asm.js</a></li><li><a href="https://developer.apple.com/documentation/javascriptcore" rel="nofollow" target="_blank">JavaScriptCore</a></li><li><a href="https://www.certificate-transparency.org" rel="nofollow" target="_blank">Certificate Transparency</a></li></ul>

55. Fired Up about Firebase

After recording Episode 2, Soroush remembered some other questions about View Models. In this special episode, your hosts answer even more View Model questions.  Separate Read Model from Write Model to Support Complex Forms MVC on Wikipedia How MVC works in Smalltalk HATEOAS “A hypermedia-driven site provides information to navigate the site's REST interfaces dynamically by including hypermedia links with the responses.”   ReactiveCocoa Actions The Action type This issue provides an example of a view model exposing an Action  

After recording <a href="http://fatalerror.fm/episodes/2016/8/13/2-view-models" rel="nofollow" target="_blank">Episode 2</a>, Soroush remembered some other questions about View Models. In this special episode, your hosts answer even more View Model questions. <ul> <li><a href="https://christiantietze.de/posts/2015/12/separate-read-write-models/" rel="nofollow" target="_blank">Separate Read Model from Write Model to Support Complex Forms</a></li> <li><a href="https://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller" rel="nofollow" target="_blank">MVC on Wikipedia</a></li> <li><a href="http://www.as3dp.com/wp-content/uploads/2010/02/mvc_pope_krasner.png" rel="nofollow" target="_blank">How MVC works in Smalltalk</a></li> <li><a href="https://spring.io/understanding/HATEOAS" rel="nofollow" target="_blank">HATEOAS</a><ul> <li>“A hypermedia-driven site provides information to navigate the site's <a href="https://spring.io/understanding/rest" rel="nofollow" target="_blank">REST</a> interfaces dynamically by including hypermedia links with the responses.”</li> </ul> </li> <li><a href="https://github.com/ReactiveCocoa/ReactiveCocoa/blob/master/Documentation/FrameworkOverview.md#actions" rel="nofollow" target="_blank">ReactiveCocoa Actions</a><ul> <li>The <a href="https://github.com/ReactiveCocoa/ReactiveCocoa/blob/master/ReactiveCocoa/Swift/Action.swift" rel="nofollow" target="_blank">Action type</a></li> <li><a href="https://github.com/ReactiveCocoa/ReactiveCocoa/issues/2784" rel="nofollow" target="_blank">This issue</a> provides an example of a view model exposing an Action</li> </ul> </li></ul>

3. View Models, Again

Get a new Fatal Error episode every week by becoming a Patreon supporter!This week, Soroush and Chris revisit their first iOS apps.360|iDevAndrew Sardonecdzombak/CAENLabStatus-iOSInitial commits"I’m an asshole”CDZTableViewSplitDelegate.m was used so that a separate, reusable object could handle the parallax scrolling effect used on maps in the app.DZCLabStatusHelper.mScreenshotsArizona Daylight Saving TimeEpisode 6: SingletonsTransitioning to ARC Release NotesAdded August 23: Chris also gave a Git intro talk for a student group in 2012. That talk is archived here: Collaborating with Git.

Get a new Fatal Error episode every week by becoming a <a href="https://www.patreon.com/fatalerror" rel="nofollow" target="_blank">Patreon supporter!</a>This week, Soroush and Chris revisit their first iOS apps.<ul><li><a href="https://360idev.com" rel="nofollow" target="_blank">360|iDev</a></li><li><a href="https://andrewsardone.com" rel="nofollow" target="_blank">A</a><a href="https://andrewsardone.com" rel="nofollow" target="_blank">ndrew </a><a href="https://andrewsardone.com" rel="nofollow" target="_blank">S</a><a href="https://andrewsardone.com" rel="nofollow" target="_blank">ardone</a></li><li><a href="https://github.com/cdzombak/CAENLabStatus-iOS" rel="nofollow" target="_blank">cdzombak/CAENLabStatus-iOS</a><ul><li><a href="https://github.com/cdzombak/CAENLabStatus-iOS/commits/master?after=6116f5a0c354fcfe7d61d410375a850372be89f8+209" rel="nofollow" target="_blank">Initial commits</a></li><li><a href="https://github.com/cdzombak/CAENLabStatus-iOS/blob/master/CAENLabStatus/DZCHostInfoApiClient.m" rel="nofollow" target="_blank">"I’m an asshole”</a></li><li><a href="https://github.com/cdzombak/CAENLabStatus-iOS/blob/master/CAENLabStatus/CDZTableViewSplitDelegate.m" rel="nofollow" target="_blank">CDZTableViewSplitDelegate.m</a> was used so that a separate, reusable object could handle the parallax scrolling effect used on maps in the app.</li><li><a href="https://github.com/cdzombak/CAENLabStatus-iOS/blob/master/CAENLabStatus/DZCLabStatusHelper.m" rel="nofollow" target="_blank">DZCLabStatusHelper.m</a></li><li><a href="https://imgur.com/a/qFpb2" rel="nofollow" target="_blank">Screenshots</a></li></ul></li><li><a href="https://www.timeanddate.com/time/us/arizona-no-dst.html" rel="nofollow" target="_blank">A</a><a href="https://www.timeanddate.com/time/us/arizona-no-dst.html" rel="nofollow" target="_blank">rizona </a><a href="https://www.timeanddate.com/time/us/arizona-no-dst.html" rel="nofollow" target="_blank">D</a><a href="https://www.timeanddate.com/time/us/arizona-no-dst.html" rel="nofollow" target="_blank">aylight </a><a href="https://www.timeanddate.com/time/us/arizona-no-dst.html" rel="nofollow" target="_blank">S</a><a href="https://www.timeanddate.com/time/us/arizona-no-dst.html" rel="nofollow" target="_blank">aving </a><a href="https://www.timeanddate.com/time/us/arizona-no-dst.html" rel="nofollow" target="_blank">T</a><a href="https://www.timeanddate.com/time/us/arizona-no-dst.html" rel="nofollow" target="_blank">ime</a></li><li><a href="https://fatalerror.fm/episodes/2016/10/10/6-singletons" rel="nofollow" target="_blank">Episode 6: Singletons</a></li><li><a href="https://developer.apple.com/library/content/releasenotes/ObjectiveC/RN-TransitioningToARC/Introduction/Introduction.html" rel="nofollow" target="_blank">Transitioning to ARC Release Notes</a></li></ul>Added August 23: Chris also gave a Git intro talk for a student group in 2012. That talk is archived here: <a href="https://www.dzombak.com/talks/2012-09-collaborating-with-git.html" rel="nofollow" target="_blank">Collaborating with Git</a>.

39. Our First Apps

Chris and Soroush continue their discussion of the future of concurrency in Swift by considering how Erlang achieves fault isolation with actors.Concurrency in Swift: One approachPreviously: Episode 42: ActorsErlang and ElixirErlang Hot Code SwappingConcurrent and Distributed Programming with Erlang and Elixir: Part 1Errors and ProcessesWho Supervises The Supervisors?Fault Tolerance doesn't come out of the boxConcurrency in Erlang &amp; Scala: The Actor ModelAlan KaySmalltalkHeart of SmalltalkSmalltalk in One PageWhat is OTP? (Learn You Some Erlang)erlang/OTP on GitHub Get a new Fatal Error episode every week by becoming a supporter at patreon.com/fatalerror.

Chris and Soroush continue their discussion of the future of concurrency in Swift by considering how Erlang achieves fault isolation with actors.<ul><li><a href="https://gist.github.com/lattner/31ed37682ef1576b16bca1432ea9f782#part-3-reliability-through-fault-isolation" rel="nofollow" target="_blank">Concurrency in Swift: One approach</a></li><li>Previously: <a href="https://www.patreon.com/posts/42-actors-14253339" rel="nofollow" target="_blank">Episode 42: Actors</a></li><li><a href="https://www.erlang.org" rel="nofollow" target="_blank">Erlang</a> and <a href="https://elixir-lang.org" rel="nofollow" target="_blank">Elixir</a></li><li><a href="https://github.com/nickmcdowall/Erlang-Examples/wiki/Hot-Code-Swapping" rel="nofollow" target="_blank">Erlang Hot Code Swapping</a></li><li><a href="http://www.huffingtonpost.com/jose-valim/concurrent-and-distribute_b_4350533.html" rel="nofollow" target="_blank">Concurrent and Distributed Programming with Erlang and Elixir: Part 1</a></li><li><a href="http://learnyousomeerlang.com/errors-and-processes" rel="nofollow" target="_blank">Errors and Processes</a></li><li><a href="http://learnyousomeerlang.com/supervisors" rel="nofollow" target="_blank">Who Supervises The Supervisors?</a></li><li><a href="https://www.erlang-solutions.com/blog/fault-tolerance-doesn-t-come-out-of-the-box-alchemy-101-part-3.html" rel="nofollow" target="_blank">Fault Tolerance doesn't come out of the box</a></li><li><a href="https://rocketeer.be/articles/concurrency-in-erlang-scala/" rel="nofollow" target="_blank">Concurrency in Erlang &amp; Scala: The Actor Model</a></li><li><a href="http://amturing.acm.org/award_winners/kay_3972189.cfm" rel="nofollow" target="_blank">Alan Kay</a></li><li><a href="http://wiki.c2.com/?SmalltalkLanguage" rel="nofollow" target="_blank">Smalltalk</a><ul><li><a href="http://wiki.c2.com/?HeartOfSmalltalk" rel="nofollow" target="_blank">Heart of Smalltalk</a></li><li><a href="http://wiki.c2.com/?SmalltalkInOnePage" rel="nofollow" target="_blank">Smalltalk in One Page</a></li></ul></li><li><a href="http://learnyousomeerlang.com/what-is-otp" rel="nofollow" target="_blank">What is OTP?</a><a href="http://learnyousomeerlang.com/what-is-otp" rel="nofollow" target="_blank"> </a><a href="http://learnyousomeerlang.com/what-is-otp" rel="nofollow" target="_blank">(</a><a href="http://learnyousomeerlang.com/what-is-otp" rel="nofollow" target="_blank">Learn You Some Erlang)</a><ul><li><a href="https://github.com/erlang/otp" rel="nofollow" target="_blank">erlang/OTP on GitHub</a></li></ul></li></ul> Get a new Fatal Error episode every week by becoming a supporter at <a href="https://www.patreon.com/fatalerror" rel="nofollow" target="_blank">patreon.com/fatalerror</a>.

45. Fault Tolerance with Actors

Get a new Fatal Error episode every week by becoming a Patreon supporter!This week, Soroush and Chris talk about why they'd basically never use Core Data.Mike Ash comment on Hacker News (copied below)Cache Me If You Can: Soroush's post on why not to use Core Data as a cacheRuby Midwest 2011 - Keynote: Architecture the Lost Years by Robert MartinCaleb Davenport: Ditching Core Data (and using YapDatabase)ACID GuaranteesMike Ash:The short and easy answer is no, never.Core Data is just not a good technology. People on the other side of this debate will say that there's an appropriate time for everything, but nothing makes sense for everything, so you have to choose based on your needs. This is half true. It misses the fact that some things are just plain bad and are never better than the alternatives in any situation, and IMO Core Data is in this category.There are several fundamental problems with it.First, the API is awful. If you want decent model objects in memory you either have to do a bunch of manual work, or use a third-party tool like mogenerator. Even then, the result is a massive soup of mutable objects with no intelligence. The structure of the API encourages passing the entire context around everywhere, which basically turns all of these objects into global variables. Look no further than popular Core Data wrapper APIs to see how bad this can get. For example, ObjectiveRecord[1] adds class methods for looking up objects using a predicate. Modularity? Separation of concerns? Perish the thought.Second, it ties your on-disk representation to your in-memory representation way too strongly, and this makes it more difficult to choose appropriate structures for either one, and more difficult to make changes to either one.Third, it locks you into the technology something fierce. Core Data is so different from everything else that once you build your model layer on it, you're just about stuck there forever. You can move away, but it's a ton of work that reaches into every corner of your app. Other solutions, like serializing to a property list or SQLite, simply require a translation layer that you can switch out more or less at will.Fourth, it's unbelievably slow. Literally unbelievable, as in I tell people about it and they don't believe me. It's too slow for a large number of records. It's fast enough for a very small number of records, but at that level it provides no advantage over using property lists and just loading everything into memory. At the large scale, you don't want to load everything into memory so you need a better scheme, but then you need something like SQLite so you can avoid the slowness and gain more control. Core Data is really only workable when your quantity of data is in a happy medium, which exists roughly within the range of 1097 to 1143 records. (Warning: previous numbers made up.) Since you can almost never guarantee that your data will live in that happy medium and not exceed it, Core Data is a bad choice.I understand why its proponents advocate for it. It's shiny. Apple pushes it hard, and people tend to like what Apple tells them to like. It gives the illusion of making things easy. It does make certain simple things easy. The problem is that making easy things easier is not a virtue. Making difficult things easier is what counts, and Core Data fails at that.[1] https://github.com/mneorr/ObjectiveRecord

Get a new Fatal Error episode every week by becoming a <a href="https://www.patreon.com/fatalerror" rel="nofollow" target="_blank">Patreon supporter!</a> This week, Soroush and Chris talk about why they'd basically never use Core Data.<ul><li><a href="https://news.ycombinator.com/item?id=6553584" rel="nofollow" target="_blank">Mike Ash comment on Hacker News</a> (copied below)</li><li><a href="http://khanlou.com/2015/07/cache-me-if-you-can/" rel="nofollow" target="_blank">Cache Me If You Can</a>: Soroush's post on why not to use Core Data as a cache</li><li><a href="https://www.youtube.com/watch?v=WpkDN78P884" rel="nofollow" target="_blank">Ruby Midwest 2011 - Keynote: Architecture the Lost Years by Robert Martin</a></li><li>Caleb Davenport: <a href="https://medium.com/the-way-north/ditching-core-data-865c1bb5564c" rel="nofollow" target="_blank">Ditching Core Data</a> (and using YapDatabase)</li><li><a href="https://en.wikipedia.org/wiki/ACID" rel="nofollow" target="_blank">ACID Guarantees</a></li></ul>Mike Ash:<blockquote>The short and easy answer is no, never.</blockquote><blockquote>Core Data is just not a good technology. People on the other side of this debate will say that there's an appropriate time for everything, but nothing makes sense for everything, so you have to choose based on your needs. This is half true. It misses the fact that some things are just plain bad and are never better than the alternatives in any situation, and IMO Core Data is in this category.</blockquote><blockquote>There are several fundamental problems with it.</blockquote><blockquote>First, the API is awful. If you want decent model objects in memory you either have to do a bunch of manual work, or use a third-party tool like mogenerator. Even then, the result is a massive soup of mutable objects with no intelligence. The structure of the API encourages passing the entire context around everywhere, which basically turns all of these objects into global variables. Look no further than popular Core Data wrapper APIs to see how bad this can get. For example, ObjectiveRecord[1] adds class methods for looking up objects using a predicate. Modularity? Separation of concerns? Perish the thought.</blockquote><blockquote>Second, it ties your on-disk representation to your in-memory representation way too strongly, and this makes it more difficult to choose appropriate structures for either one, and more difficult to make changes to either one.</blockquote><blockquote>Third, it locks you into the technology something fierce. Core Data is so different from everything else that once you build your model layer on it, you're just about stuck there forever. You can move away, but it's a ton of work that reaches into every corner of your app. Other solutions, like serializing to a property list or SQLite, simply require a translation layer that you can switch out more or less at will.</blockquote><blockquote>Fourth, it's unbelievably slow. Literally unbelievable, as in I tell people about it and they don't believe me. It's too slow for a large number of records. It's fast enough for a very small number of records, but at that level it provides no advantage over using property lists and just loading everything into memory. At the large scale, you don't want to load everything into memory so you need a better scheme, but then you need something like SQLite so you can avoid the slowness and gain more control. Core Data is really only workable when your quantity of data is in a happy medium, which exists roughly within the range of 1097 to 1143 records. (Warning: previous numbers made up.) Since you can almost never guarantee that your data will live in that happy medium and not exceed it, Core Data is a bad choice.</blockquote><blockquote>I understand why its proponents advocate for it. It's shiny. Apple pushes it hard, and people tend to like what Apple tells them to like. It gives the illusion of making things easy. It does make certain simple things easy. The problem is that making easy things easier is not a virtue. Making difficult things easier is what counts, and Core Data fails at that.</blockquote><blockquote>[1] <a href="https://github.com/mneorr/ObjectiveRecord" rel="nofollow" target="_blank">https://github.com/mneorr/ObjectiveRecord</a></blockquote>

27. Core Data

This week, Chris and Soroush talk about impostor syndrome, starting a new job, team dynamics and rockstar developers. Then: toggling booleans and the Law of Demeter!“No Feigning Surprise” - Recurse CenterFear, Uncertainty, and Doubt - CocoaLove 2014Impostor SyndromeThe Inner JSON EffectBus FactorSalary Negotiation: Make More Money, Be More Valued“’You miss 100% of the shots you don’t take’” - Wayne Gretzky” - Michael Scott"Every great developer you know got there by solving problems they were unqualified to solve until they actually did it." - Patrick McKenzie“People sometimes ask me how I learned the crazy stuff I like to do. This is how.”SE-0199 – Adding toggle to BoolLaw of DemeterYou Deserve Nice ThingsGet a new Fatal Error episode every week by becoming a supporter at patreon.com/fatalerror.

This week, Chris and Soroush talk about impostor syndrome, starting a new job, team dynamics and rockstar developers. Then: toggling booleans and the Law of Demeter!<ul><li><a href="https://www.recurse.com/manual" rel="nofollow" target="_blank">“No Feigning Surprise”</a><a href="https://www.recurse.com/manual" rel="nofollow" target="_blank"> </a><a href="https://www.recurse.com/manual" rel="nofollow" target="_blank">-</a><a href="https://www.recurse.com/manual" rel="nofollow" target="_blank"> Recurse Center</a></li><li><a href="https://vimeo.com/111868884" rel="nofollow" target="_blank">Fear, Uncertainty, and Doubt</a><a href="https://vimeo.com/111868884" rel="nofollow" target="_blank"> </a><a href="https://vimeo.com/111868884" rel="nofollow" target="_blank">-</a><a href="https://vimeo.com/111868884" rel="nofollow" target="_blank"> CocoaLove 2014</a></li><li><a href="https://en.wikipedia.org/wiki/Impostor_syndrome" rel="nofollow" target="_blank">Impostor Syndrome</a></li><li><a href="http://thedailywtf.com/articles/the-inner-json-effect" rel="nofollow" target="_blank">The Inner JSON Effect</a></li><li><a href="https://en.wikipedia.org/wiki/Bus_factor" rel="nofollow" target="_blank">Bus Factor</a></li><li><a href="https://www.kalzumeus.com/2012/01/23/salary-negotiation/" rel="nofollow" target="_blank">Salary Negotiation: Make More Money, Be More Valued</a></li><li><a href="https://d3vv6lp55qjaqc.cloudfront.net/items/1h3f1Z0h0A3k1w263f27/Image%202018-02-24%20at%209.45.30%20AM.png?X-CloudApp-Visitor-Id=77584" rel="nofollow" target="_blank">“’You miss 100% of the shots you don’t take’”</a><a href="https://d3vv6lp55qjaqc.cloudfront.net/items/1h3f1Z0h0A3k1w263f27/Image%202018-02-24%20at%209.45.30%20AM.png?X-CloudApp-Visitor-Id=77584" rel="nofollow" target="_blank"> </a><a href="https://d3vv6lp55qjaqc.cloudfront.net/items/1h3f1Z0h0A3k1w263f27/Image%202018-02-24%20at%209.45.30%20AM.png?X-CloudApp-Visitor-Id=77584" rel="nofollow" target="_blank">-</a><a href="https://d3vv6lp55qjaqc.cloudfront.net/items/1h3f1Z0h0A3k1w263f27/Image%202018-02-24%20at%209.45.30%20AM.png?X-CloudApp-Visitor-Id=77584" rel="nofollow" target="_blank"> Wayne Gretzky”</a><a href="https://d3vv6lp55qjaqc.cloudfront.net/items/1h3f1Z0h0A3k1w263f27/Image%202018-02-24%20at%209.45.30%20AM.png?X-CloudApp-Visitor-Id=77584" rel="nofollow" target="_blank"> </a><a href="https://d3vv6lp55qjaqc.cloudfront.net/items/1h3f1Z0h0A3k1w263f27/Image%202018-02-24%20at%209.45.30%20AM.png?X-CloudApp-Visitor-Id=77584" rel="nofollow" target="_blank">-</a><a href="https://d3vv6lp55qjaqc.cloudfront.net/items/1h3f1Z0h0A3k1w263f27/Image%202018-02-24%20at%209.45.30%20AM.png?X-CloudApp-Visitor-Id=77584" rel="nofollow" target="_blank"> Michael Scott</a></li><li><a href="https://twitter.com/CodeWisdom/status/966305768030064640" rel="nofollow" target="_blank">"Every great developer you know got there by solving problems they were unqualified to solve until they actually did it."</a><a href="https://twitter.com/CodeWisdom/status/966305768030064640" rel="nofollow" target="_blank"> </a><a href="https://twitter.com/CodeWisdom/status/966305768030064640" rel="nofollow" target="_blank">-</a><a href="https://twitter.com/CodeWisdom/status/966305768030064640" rel="nofollow" target="_blank"> Patrick McKenzie</a></li><li><a href="https://twitter.com/mikeash/status/967373856531976193" rel="nofollow" target="_blank">“People sometimes ask me how I learned the crazy stuff I like to do. This is how.”</a></li><li><a href="https://github.com/apple/swift-evolution/blob/master/proposals/0199-bool-toggle.md" rel="nofollow" target="_blank">SE-0199</a><a href="https://github.com/apple/swift-evolution/blob/master/proposals/0199-bool-toggle.md" rel="nofollow" target="_blank"> </a><a href="https://github.com/apple/swift-evolution/blob/master/proposals/0199-bool-toggle.md" rel="nofollow" target="_blank">–</a><a href="https://github.com/apple/swift-evolution/blob/master/proposals/0199-bool-toggle.md" rel="nofollow" target="_blank"> Adding toggle to Bool</a></li><li><a href="https://en.wikipedia.org/wiki/Law_of_Demeter" rel="nofollow" target="_blank">Law of Demeter</a></li><li><a href="https://www.youtube.com/watch?v=KhYfe4R2Es0&amp;app=desktop" rel="nofollow" target="_blank">You Deserve Nice Things</a></li></ul>Get a new Fatal Error episode every week by becoming a supporter at <a href="https://www.patreon.com/fatalerror" rel="nofollow" target="_blank">patreon.com/fatalerror</a>.

59. Why did they even hire Chris??

This is the last non-Patreon-exclusive episode of our second season. Episode 30 will appear on our Patreon page next week, then we’ll take a 6-week break and Episode 31 will be posted here on July 3. Thank you for listening!Protocol 'XYZ' can only be used as a generic constraint because it has Self or associated type requirements. Oh no, what now?Alexis Gallagher: Protocols with Associated TypesGwendolyn Weston: Keep Calm and Type Erase OnMislav Javor: Swift Enums Are "sum" Types. That Makes Them Very InterestingBrandon Williams’ Few But Ripe blog, for learning about sum and product types, among other mathematical conceptsThe example from Soroush of using generic constraints to sidestep this issue — GistBill Venners: Abstract Type Members versus Generic Type Parameters in ScalaSwift: Generics ManifestoRuss Bishop's Swift Associated Types seriesChris Eidhof: Type Erasers in Swift

This is the last non-Patreon-exclusive episode of our second season. Episode 30 will appear on <a href="https://www.patreon.com/fatalerror" rel="nofollow" target="_blank">our Patreon page</a> next week, then we’ll take a 6-week break and Episode 31 will be posted here on July 3. Thank you for listening! Protocol 'XYZ' can only be used as a generic constraint because it has Self or associated type requirements. Oh no, what now?<ul><li>Alexis Gallagher: <a href="https://www.youtube.com/watch?v=XWoNjiSPqI8" rel="nofollow" target="_blank">Protocols with Associated Types</a></li><li>Gwendolyn Weston: <a href="https://news.realm.io/news/tryswift-gwendolyn-weston-type-erasure/" rel="nofollow" target="_blank">Keep Calm and Type Erase On</a></li><li>Mislav Javor: <a href="https://mislavjavor.github.io/2017-04-19/Swift-enums-are-sum-types.-That-makes-them-very-interesting/" rel="nofollow" target="_blank">Swift Enums Are "sum" Types. That Makes Them Very Interesting</a></li><li>Brandon Williams’ <a href="http://www.fewbutripe.com" rel="nofollow" target="_blank">Few But Ripe blog</a>, for learning about sum and product types, among other mathematical concepts</li><li>The example from Soroush of using generic constraints to sidestep this issue — <a href="https://gist.github.com/khanlou/bcb3589e78877c232058fa6646fbca6b" rel="nofollow" target="_blank">Gist</a></li><li>Bill Venners: <a href="http://www.artima.com/weblogs/viewpost.jsp?thread=270195" rel="nofollow" target="_blank">Abstract Type Members versus Generic Type Parameters in Scala</a></li><li>Swift: <a href="https://github.com/apple/swift/blob/master/docs/GenericsManifesto.md#generalized-existentials" rel="nofollow" target="_blank">Generics Manifesto</a></li><li>Russ Bishop's <a href="http://www.russbishop.net/swift-associated-types" rel="nofollow" target="_blank">Swift Associated Types</a> series</li><li>Chris Eidhof: <a href="http://chris.eidhof.nl/post/type-erasers-in-swift/" rel="nofollow" target="_blank">Type Erasers in Swift</a></li></ul>

29. Protocols with Associated Types

Get a new Fatal Error episode every week by becoming a Patreon supporter!Chris and Soroush dive deep on server-side Swift.Fatal Error Episode 30: Server-Side SwiftBeaconAshley Nelson-HornsteinVaporFoundation’s base64 encoding bug on Linux Vapor SlackMonoreposDan Luu on MonoreposDavid R. MacIver on Monreposgit-subtreeKituraErrors on the server on Soroush’s bloggithub.com/khanlou/PromiseFatal Error 4. PromisesFatal Error 5. Reactive ProgrammingProposal to unify Swift.String Index types

Get a new Fatal Error episode every week by becoming a <a href="https://www.patreon.com/fatalerror" rel="nofollow" target="_blank">Patreon supporter!</a>Chris and Soroush dive deep on server-side Swift.<ul><li><a href="https://www.patreon.com/posts/30-server-side-11190759" rel="nofollow" target="_blank">Fatal Error Episode 30: Server-Side Swift</a></li><li><a href="http://beacon.party" rel="nofollow" target="_blank">Beacon</a></li><li><a href="https://twitter.com/ashleynh" rel="nofollow" target="_blank">Ashley Nelson-Hornstein</a></li><li><a href="https://github.com/vapor/vapor" rel="nofollow" target="_blank">Vapor</a></li><li><a href="https://github.com/vapor/jwt/issues/41" rel="nofollow" target="_blank">Foundation’s base64 encoding bug on Linux</a> </li><li><a href="http://vapor.team" rel="nofollow" target="_blank">Vapor Slack</a></li><li>Monorepos<ul><li><a href="https://danluu.com/monorepo/" rel="nofollow" target="_blank">Dan Luu on </a><a href="https://danluu.com/monorepo/" rel="nofollow" target="_blank">Monorepo</a><a href="https://danluu.com/monorepo/" rel="nofollow" target="_blank">s</a></li><li><a href="http://www.drmaciver.com/2016/10/why-you-should-use-a-single-repository-for-all-your-companys-projects/" rel="nofollow" target="_blank">David R. MacIver on Monrepos</a></li></ul></li><li><a href="https://www.atlassian.com/blog/git/alternatives-to-git-submodule-git-subtree" rel="nofollow" target="_blank">git-subtree</a></li><li><a href="https://github.com/IBM-Swift/Kitura" rel="nofollow" target="_blank">K</a><a href="https://github.com/IBM-Swift/Kitura" rel="nofollow" target="_blank">i</a><a href="https://github.com/IBM-Swift/Kitura" rel="nofollow" target="_blank">tura</a></li><li><a href="http://khanlou.com/2017/07/errors-on-the-server/" rel="nofollow" target="_blank">Errors on the server</a> on Soroush’s blog</li><li><a href="https://github.com/khanlou/Promise" rel="nofollow" target="_blank">github.com/khanlou/Promise</a></li><li><a href="https://fatalerror.fm/episodes/2016/9/12/4-promises" rel="nofollow" target="_blank">Fatal Error 4. Promises</a></li><li><a href="https://fatalerror.fm/episodes/2016/9/26/5-reactive-programming" rel="nofollow" target="_blank">Fatal Error 5. Reactive Programming</a></li><li><a href="https://github.com/apple/swift-evolution/blob/master/proposals/0180-string-index-overhaul.md" rel="nofollow" target="_blank">Proposal to unify Swift.String Index types</a></li></ul>

33. Server-Side Swift in Practice

This week, our boys talk about promises: where do they come from, and what they are good for?  Soroush's post about the experience of writing a Promise class Soroush's follow-up post about how easy it is to build cool things with promises The JavaScript A+/Promise spec WWDC video for improved GCD in Swift 3 Chris Lattner's retrospective on Swift 3 “First class concurrency: Actors, async/await, atomicity, memory model, and related topics.”   “Lifetimes” in Rust Async and Await in C# Common iOS Promise libraries PromiseKit BrightFutures FutureKit SwiftTask   UView+Promises from PromiseKit Soroush's Promise library

This week, our boys talk about promises: where do they come from, and what they are good for? <ul> <li><a href="http://khanlou.com/2016/08/promises-in-swift/" rel="nofollow" target="_blank">Soroush's post about the experience of writing a Promise class</a></li> <li><a href="http://khanlou.com/2016/08/common-patterns-with-promises/" rel="nofollow" target="_blank">Soroush's follow-up post about how easy it is to build cool things with promises</a></li> <li><a href="https://promisesaplus.com/" rel="nofollow" target="_blank">The JavaScript A+/Promise spec</a></li> <li><a href="https://developer.apple.com/videos/play/wwdc2016/720/" rel="nofollow" target="_blank">WWDC video for improved GCD in Swift 3</a></li> <li><a href="https://gist.github.com/cdzombak/730b98246e6bb513ea0b0d5ea907979f" rel="nofollow" target="_blank">Chris Lattner's retrospective on Swift 3</a><ul> <li>“First class concurrency: Actors, async/await, atomicity, memory model, and related topics.”</li> </ul> </li> <li><a href="https://doc.rust-lang.org/book/lifetimes.html" rel="nofollow" target="_blank">“Lifetimes” in Rust</a></li> <li><a href="http://blog.stephencleary.com/2012/02/async-and-await.html" rel="nofollow" target="_blank">Async and Await in C#</a></li> <li>Common iOS Promise libraries<ul> <li><a href="https://github.com/mxcl/PromiseKit" rel="nofollow" target="_blank">PromiseKit</a></li> <li><a href="https://github.com/Thomvis/BrightFutures" rel="nofollow" target="_blank">BrightFutures</a></li> <li><a href="https://github.com/FutureKit/FutureKit" rel="nofollow" target="_blank">FutureKit</a></li> <li><a href="https://github.com/ReactKit/SwiftTask" rel="nofollow" target="_blank">SwiftTask</a></li> </ul> </li> <li><a href="https://github.com/mxcl/PromiseKit/blob/master/Categories/UIKit/UIView%2BPromise.swift" rel="nofollow" target="_blank"><code>UView+Promises</code></a> from PromiseKit</li> <li><a href="https://github.com/khanlou/Promise" rel="nofollow" target="_blank">Soroush's Promise library</a></li></ul>

4. Promises

Get a new Fatal Error episode every week by becoming a Patreon supporter! This week, Soroush and Chris have two very special guests. Erica Gutierrez and Sara Ahmad were part of last year's summer class at Flatiron School. Since then, they've had a lot of trouble landing junior positions at tech firms. Sara and Erica share their frustrations with the hiring and interviewing process over the last year.  Flatiron School try! Swift meetup in Queens Vapor – Swift server Swift Access Specifiers Rebecca Slatkin's technical interview prep guide (Google doc)

Get a new Fatal Error episode every week by becoming a <a href="https://www.patreon.com/fatalerror" rel="nofollow" target="_blank">Patreon supporter!</a> This week, Soroush and Chris have two very special guests. Erica Gutierrez and Sara Ahmad were part of last year's summer class at Flatiron School. Since then, they've had a lot of trouble landing junior positions at tech firms. Sara and Erica share their frustrations with the hiring and interviewing process over the last year. <ul> <li><a href="https://flatironschool.com/" rel="nofollow" target="_blank">Flatiron School</a></li> <li><a href="https://www.meetup.com/try_SwiftNYC/" rel="nofollow" target="_blank">try! Swift meetup in Queens</a></li> <li><a href="https://vapor.codes/" rel="nofollow" target="_blank">Vapor – Swift server</a></li> <li><a href="https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/AccessControl.html" rel="nofollow" target="_blank">Swift Access Specifiers</a></li> <li><a href="https://docs.google.com/document/d/1N5k5GAO592d7IDiPgXq-et8KrBecdoA5OrJh9XqxecY/edit" rel="nofollow" target="_blank">Rebecca Slatkin's technical interview prep guide (Google doc)</a></li></ul>

25. Interviewing, with Erica and Sara

Singletons get a bad rap. Why? Should you use them in your application? And if you've inherited several of them, what should you do?  Singleton Pattern A Controller by Any Other Name (Soroush) The Sin in Singleton (Ben Sandofsky) singletons.info (Chris's blog posts and other links about singletons) Real World Singleton Design Singletons in Cocoa applications Quick followup on singletons   Using static let to create singletons in Swift Using static let is thread-safe   Avoiding Singleton Abuse (Stephen Poletto)

Singletons get a bad rap. Why? Should you use them in your application? And if you've inherited several of them, what should you do? <ul> <li><a href="https://en.wikipedia.org/wiki/Singleton_pattern" rel="nofollow" target="_blank">Singleton Pattern</a></li> <li><a href="http://khanlou.com/2014/11/a-controller-by-any-other-name/" rel="nofollow" target="_blank">A Controller by Any Other Name</a> (Soroush)</li> <li><a href="https://sandofsky.com/blog/singletons.html" rel="nofollow" target="_blank">The Sin in Singleton</a> (Ben Sandofsky)</li> <li><a href="http://singletons.info/" rel="nofollow" target="_blank">singletons.info</a> (Chris's blog posts and other links about singletons)<ul> <li><a href="https://www.dzombak.com/blog/2014/09/Real-World-Singleton-Design.html" rel="nofollow" target="_blank">Real World Singleton Design</a></li> <li><a href="https://www.dzombak.com/blog/2014/03/singletons.html" rel="nofollow" target="_blank">Singletons in Cocoa applications</a></li> <li><a href="https://www.dzombak.com/blog/2014/03/quick-singletons-followup.html" rel="nofollow" target="_blank">Quick followup on singletons</a></li> </ul> </li> <li><a href="https://thatthinginswift.com/singletons/" rel="nofollow" target="_blank">Using <code>static let</code> to create singletons in Swift</a><ul> <li><a href="http://krakendev.io/blog/the-right-way-to-write-a-singleton" rel="nofollow" target="_blank">Using <code>static let</code> is thread-safe</a></li> </ul> </li> <li><a href="https://www.objc.io/issues/13-architecture/singletons/" rel="nofollow" target="_blank">Avoiding Singleton Abuse</a> (Stephen Poletto)</li></ul>

6. Singletons

Get a new Fatal Error episode every week by becoming a Patreon supporter! This week, Chris and Soroush try to compare Objective C and Swift, but end up talking about metaprogramming a lot.  “Metaprogramming” isn’t a scary word (not even in Objective-C) by Soroush Mantle - JSON mapping  JTObjectMapping - more JSON mapping InstantCocoa - Soroush's Rails-esque iOS framework Method Dispatch in Swift - good overview of the different kinds of function dispatch in Swift The Ghost of Swift Bugs Future - Overview of static dispatch with protocol with default implementations

Get a new Fatal Error episode every week by becoming a <a href="https://www.patreon.com/fatalerror" rel="nofollow" target="_blank">Patreon supporter!</a> This week, Chris and Soroush try to compare Objective C and Swift, but end up talking about metaprogramming a lot. <ul> <li><a href="http://genius.com/3301973" rel="nofollow" target="_blank">“Metaprogramming” isn’t a scary word (not even in Objective-C)</a> by Soroush</li> <li><a href="https://github.com/Mantle/Mantle" rel="nofollow" target="_blank">Mantle</a> - JSON mapping </li> <li><a href="https://github.com/jamztang/JTObjectMapping" rel="nofollow" target="_blank">JTObjectMapping</a> - more JSON mapping</li> <li><a href="http://instantcocoa.io/" rel="nofollow" target="_blank">InstantCocoa</a> - Soroush's Rails-esque iOS framework</li> <li><a href="https://www.raizlabs.com/dev/2016/12/swift-method-dispatch/" rel="nofollow" target="_blank">Method Dispatch in Swift</a> - good overview of the different kinds of function dispatch in Swift</li> <li><a href="https://nomothetis.svbtle.com/the-ghost-of-swift-bugs-future" rel="nofollow" target="_blank">The Ghost of Swift Bugs Future</a> - Overview of static dispatch with protocol with default implementations</li></ul>

23. Metaprogramming (Objective-C vs Swift)

Soroush tells Chris about some of his takeaways from Eric Evans's book, Domain-Driven Design, and they discuss how we can apply some of its lessons in our day-to-day thinking about iOS development.  Soroush's post on programming books: Resources For New Programmers Domain-Driven Design: Tackling Complexity in the Heart of Software, by Eric Evans Entity vs Value Object: the ultimate list of differences Value vs Entity Objects in Domain Driven Design Soroush: The Value of Value Objects The Swift blog: Value and Reference Types Tiny Types Soroush's post on enumerations Facade Pattern DDD: Aggregate Strategy Pattern Domain Driven Design and Development in Practice Episode 3: View Models, Again Episode 6: Singletons Cells

Soroush tells Chris about some of his takeaways from <a href="https://www.infoq.com/author/Eric-Evans" rel="nofollow" target="_blank">Eric Evans</a>'s book, <a href="https://www.amazon.com/gp/product/0321125215/" rel="nofollow" target="_blank">Domain-Driven Design</a>, and they discuss how we can apply some of its lessons in our day-to-day thinking about iOS development. <ul> <li>Soroush's post on programming books: <a href="http://khanlou.com/2016/06/resources-for-new-programmers/" rel="nofollow" target="_blank">Resources For New Programmers</a></li> <li><a href="https://www.amazon.com/gp/product/0321125215/" rel="nofollow" target="_blank">Domain-Driven Design: Tackling Complexity in the Heart of Software</a>, by Eric Evans</li> <li><a href="http://enterprisecraftsmanship.com/2016/01/11/entity-vs-value-object-the-ultimate-list-of-differences/" rel="nofollow" target="_blank">Entity vs Value Object: the ultimate list of differences</a></li> <li><a href="http://stackoverflow.com/a/75769/734716" rel="nofollow" target="_blank">Value vs Entity Objects in Domain Driven Design</a></li> <li>Soroush: <a href="http://khanlou.com/2014/05/the-value-of-value-objects/" rel="nofollow" target="_blank">The Value of Value Objects</a></li> <li>The Swift blog: <a href="https://developer.apple.com/swift/blog/?id=10" rel="nofollow" target="_blank">Value and Reference Types</a></li> <li><a href="https://darrenhobbs.com/2007/04/11/tiny-types/" rel="nofollow" target="_blank">Tiny Types</a></li> <li><a href="http://khanlou.com/2014/05/replace-enumerations-with-polymorphism/" rel="nofollow" target="_blank">Soroush's post on enumerations</a></li> <li><a href="https://en.wikipedia.org/wiki/Facade_pattern" rel="nofollow" target="_blank">Facade Pattern</a></li> <li><a href="http://martinfowler.com/bliki/DDD_Aggregate.html" rel="nofollow" target="_blank">DDD: Aggregate</a></li> <li><a href="https://en.wikipedia.org/wiki/Strategy_pattern" rel="nofollow" target="_blank">Strategy Pattern</a></li> <li><a href="https://www.infoq.com/articles/ddd-in-practice" rel="nofollow" target="_blank">Domain Driven Design and Development in Practice</a></li> <li><a href="https://fatalerror.fm/episodes/2016/8/29/3-view-models-again" rel="nofollow" target="_blank">Episode 3: View Models, Again</a></li> <li><a href="https://fatalerror.fm/episodes/2016/10/10/6-singletons" rel="nofollow" target="_blank">Episode 6: Singletons</a></li> <li><a href="http://khanlou.com/2014/05/cells/" rel="nofollow" target="_blank">Cells</a></li></ul>

8. Domain-Driven Design

This week, Soroush and Chris get ready for Dynamic Callable and Dynamic Member Lookup by thinking through how you could use them to mock objects for testing. Plus: more Booleans, national parks, and chat about testing in general.#Pragma Conference 2017 - Soroush Khanlou - You Deserve Nice ThingsTeki ConSE-0199: Adding toggle to BoolEpisode 59: Why did they even hire Chris??Mutating and Nonmutating FunctionsGoogle Image Search: Gates of the Arctic National ParkDynamic Callable &amp; Dynamic Member LookupMartin Fowler: Mocks Aren't StubsRoy Williams: Tautology Tests@whatjasdevreads on TwitterGist by Soroush: How to generate a hex string for push notificationsGet a new Fatal Error episode every week by becoming a supporter at patreon.com/fatalerror.

This week, Soroush and Chris get ready for Dynamic Callable and Dynamic Member Lookup by thinking through how you could use them to mock objects for testing. Plus: more Booleans, national parks, and chat about testing in general.<ul><li><a href="https://www.youtube.com/watch?v=KhYfe4R2Es0" rel="nofollow" target="_blank">#Pragma</a><a href="https://www.youtube.com/watch?v=KhYfe4R2Es0" rel="nofollow" target="_blank"> Conference 2017</a><a href="https://www.youtube.com/watch?v=KhYfe4R2Es0" rel="nofollow" target="_blank"> </a><a href="https://www.youtube.com/watch?v=KhYfe4R2Es0" rel="nofollow" target="_blank">-</a><a href="https://www.youtube.com/watch?v=KhYfe4R2Es0" rel="nofollow" target="_blank"> Soroush Khanlou</a><a href="https://www.youtube.com/watch?v=KhYfe4R2Es0" rel="nofollow" target="_blank"> </a><a href="https://www.youtube.com/watch?v=KhYfe4R2Es0" rel="nofollow" target="_blank">-</a><a href="https://www.youtube.com/watch?v=KhYfe4R2Es0" rel="nofollow" target="_blank"> You Deserve Nice Things</a></li><li><a href="https://teki-con.com" rel="nofollow" target="_blank">Teki Con</a></li><li><a href="https://github.com/apple/swift-evolution/blob/master/proposals/0199-bool-toggle.md" rel="nofollow" target="_blank">SE-0199: </a><a href="https://github.com/apple/swift-evolution/blob/master/proposals/0199-bool-toggle.md" rel="nofollow" target="_blank">Adding toggle to Bool</a></li><li><a href="https://fatalerror.fm/episodes/2018/3/2/59-why-did-they-even-hire-chris" rel="nofollow" target="_blank">Episode </a><a href="https://fatalerror.fm/episodes/2018/3/2/59-why-did-they-even-hire-chris" rel="nofollow" target="_blank">59</a><a href="https://fatalerror.fm/episodes/2018/3/2/59-why-did-they-even-hire-chris" rel="nofollow" target="_blank">:</a><a href="https://fatalerror.fm/episodes/2018/3/2/59-why-did-they-even-hire-chris" rel="nofollow" target="_blank"> Why did they even hire Chris??</a></li><li><a href="http://khanlou.com/2017/11/mutating-and-nonmutating-functions/" rel="nofollow" target="_blank">Mutating and Nonmutating Functions</a></li><li><a href="https://www.google.com/search?q=gates+of+the+arctic+national+park&amp;rlz=1C5CHFA_enUS745US745&amp;source=lnms&amp;tbm=isch&amp;sa=X&amp;ved=0ahUKEwiDyduoieLZAhUn74MKHQ0YAgQQ_AUICigB&amp;biw=1535&amp;bih=1173" rel="nofollow" target="_blank">Google Image Search: Gates of the Arctic National Park</a></li><li><a href="https://gist.github.com/lattner/a6257f425f55fe39fd6ac7a2354d693d" rel="nofollow" target="_blank">Dynamic Callable</a> &amp; <a href="https://github.com/apple/swift-evolution/blob/master/proposals/0195-dynamic-member-lookup.md" rel="nofollow" target="_blank">Dynamic Member Lookup</a></li><li><a href="https://martinfowler.com/articles/mocksArentStubs.html" rel="nofollow" target="_blank">Martin Fowler: Mocks Aren't Stubs</a></li><li><a href="https://medium.com/@rowillia/tautology-tests-7dabd81ade30" rel="nofollow" target="_blank">Roy Williams</a><a href="https://medium.com/@rowillia/tautology-tests-7dabd81ade30" rel="nofollow" target="_blank">: Tautology Tests</a></li><li><a href="https://twitter.com/whatjasdevreads" rel="nofollow" target="_blank">@whatjasdevreads on Twitter</a></li><li><a href="https://gist.github.com/khanlou/8e9f9615dd0199946d011e32341942c3" rel="nofollow" target="_blank">Gist by Soroush: </a><a href="https://gist.github.com/khanlou/8e9f9615dd0199946d011e32341942c3" rel="nofollow" target="_blank">How to generate a hex string for push notifications</a></li></ul>Get a new Fatal Error episode every week by becoming a supporter at <a href="https://www.patreon.com/fatalerror" rel="nofollow" target="_blank">patreon.com/fatalerror</a>.

61. Hypothetical Testing Tricks

This week, Chris and Soroush chat about productivity tools and techniques.Listen to the whole episode — and get access to the entire Fatal Error back catalog — at patreon.com/fatalerror.

This week, Chris and Soroush chat about productivity tools and techniques.Listen to the whole episode — and get access to the entire Fatal Error back catalog — at <a href="https://www.patreon.com/fatalerror" rel="nofollow" target="_blank">patreon.com/fatalerror</a>.

Teaser: 48. Productivity

This week, Chris and Soroush discuss the world of independent Cocoa conferences, then debate Chris Lattner’s recently-accepted dynamic member lookup proposal.The end of the conference eraRelease NotesStrange LoopCocoa LoveCingletonGitHub: Lascorbe/CocoaConferencesNSScreencastDestroy All Software ScreencastsPoint-FreeSwift TalkTeki ConSwiftFestSoroush Khanlou - You Deserve Nice ThingsXOXO FestivalSE-0195: Introduce User-defined "Dynamic Member Lookup" TypesSE-0195 Review ThreadTensorFlowProposal draft: Introduce User-defined Dynamically "callable" TypesSourceryGet a new Fatal Error episode every week by becoming a supporter at patreon.com/fatalerror.

This week, Chris and Soroush discuss the world of independent Cocoa conferences, then debate Chris Lattner’s recently-accepted dynamic member lookup proposal.<ul><li><a href="https://marco.org/2018/01/17/end-of-conference-era" rel="nofollow" target="_blank">The end of the conference era</a></li><li><a href="https://2016.releasenotes.tv" rel="nofollow" target="_blank">Release Notes</a></li><li><a href="https://www.thestrangeloop.com" rel="nofollow" target="_blank">Strange Loop</a></li><li><a href="https://cocoalove.org" rel="nofollow" target="_blank">Cocoa Love</a></li><li><a href="http://cingleton.com" rel="nofollow" target="_blank">Cingleton</a></li><li>GitHub: <a href="https://github.com/Lascorbe/CocoaConferences" rel="nofollow" target="_blank">Lascorbe/CocoaConferences</a></li><li><a href="https://nsscreencast.com/episodes" rel="nofollow" target="_blank">NSScreencast</a></li><li><a href="https://www.destroyallsoftware.com/screencasts/" rel="nofollow" target="_blank">D</a><a href="https://www.destroyallsoftware.com/screencasts/" rel="nofollow" target="_blank">estroy All Software Screencasts</a></li><li><a href="http://pointfree.co" rel="nofollow" target="_blank">Point-Free</a></li><li><a href="https://talk.objc.io" rel="nofollow" target="_blank">Swift Talk</a></li><li><a href="https://teki-con.com" rel="nofollow" target="_blank">Teki Con</a></li><li><a href="http://swiftfest.io" rel="nofollow" target="_blank">SwiftFest</a></li><li><a href="https://www.youtube.com/watch?v=KhYfe4R2Es0" rel="nofollow" target="_blank">Soroush Khanlou</a><a href="https://www.youtube.com/watch?v=KhYfe4R2Es0" rel="nofollow" target="_blank"> </a><a href="https://www.youtube.com/watch?v=KhYfe4R2Es0" rel="nofollow" target="_blank">-</a><a href="https://www.youtube.com/watch?v=KhYfe4R2Es0" rel="nofollow" target="_blank"> You Deserve Nice Things</a></li><li><a href="https://xoxofest.com" rel="nofollow" target="_blank">XOXO Festival</a></li><li><a href="https://github.com/apple/swift-evolution/blob/master/proposals/0195-dynamic-member-lookup.md" rel="nofollow" target="_blank">SE-0195: </a><a href="https://github.com/apple/swift-evolution/blob/master/proposals/0195-dynamic-member-lookup.md" rel="nofollow" target="_blank">Introduce User-defined</a><a href="https://github.com/apple/swift-evolution/blob/master/proposals/0195-dynamic-member-lookup.md" rel="nofollow" target="_blank"> </a><a href="https://github.com/apple/swift-evolution/blob/master/proposals/0195-dynamic-member-lookup.md" rel="nofollow" target="_blank">"</a><a href="https://github.com/apple/swift-evolution/blob/master/proposals/0195-dynamic-member-lookup.md" rel="nofollow" target="_blank">Dynamic Member Lookup" Types</a></li><li><a href="https://forums.swift.org/t/se-0195-introduce-user-defined-dynamic-member-lookup-types/8658/124" rel="nofollow" target="_blank">SE-0195 Review Thread</a></li><li><a href="https://www.tensorflow.org" rel="nofollow" target="_blank">TensorFlow</a></li><li>Proposal draft: <a href="https://gist.github.com/lattner/a6257f425f55fe39fd6ac7a2354d693d" rel="nofollow" target="_blank">Introduce User-defined Dynamically</a><a href="https://gist.github.com/lattner/a6257f425f55fe39fd6ac7a2354d693d" rel="nofollow" target="_blank"> </a><a href="https://gist.github.com/lattner/a6257f425f55fe39fd6ac7a2354d693d" rel="nofollow" target="_blank">"</a><a href="https://gist.github.com/lattner/a6257f425f55fe39fd6ac7a2354d693d" rel="nofollow" target="_blank">callable" Types</a></li><li><a href="https://github.com/krzysztofzablocki/Sourcery" rel="nofollow" target="_blank">Sourcery</a></li></ul>Get a new Fatal Error episode every week by becoming a supporter at <a href="https://www.patreon.com/fatalerror" rel="nofollow" target="_blank">patreon.com/fatalerror</a>.

57. Lattnerianly In-Depth

This week, Chris and Soroush chat about async/await in Swift!Listen to the whole episode — and get access to the entire Fatal Error back catalog — at patreon.com/fatalerror.

This week, Chris and Soroush chat about async/await in Swift!Listen to the whole episode — and get access to the entire Fatal Error back catalog — at <a href="https://www.patreon.com/fatalerror" rel="nofollow" target="_blank">patreon.com/fatalerror</a>.

Teaser: 40. Async/Await

Get a new Fatal Error episode every week by becoming a Patreon supporter.This week, Chris and Soroush talk about Swift's ownership manifesto.Ownership ManifestoSwift Ownership Manifesto TL;DRThe Rust Programming Language: What is Ownership?Also: References and BorrowingPony is an open-source, object-oriented, actor-model, capabilities-secure, high performance programming language.Safely Sharing Data: Reference Capabilities in Pony

Get a new Fatal Error episode every week by becoming a <a href="https://www.patreon.com/fatalerror" rel="nofollow" target="_blank">Patreon supporter</a>.This week, Chris and Soroush talk about Swift's ownership manifesto.<ul><li><a href="https://github.com/apple/swift/blob/master/docs/OwnershipManifesto.md" rel="nofollow" target="_blank">Ownership Manifesto</a></li><li><a href="https://gist.github.com/Gankro/1f79fbf2a9776302a9d4c8c0097cc40e" rel="nofollow" target="_blank">Swift Ownership Manifesto TL;DR</a></li><li><a href="https://doc.rust-lang.org/book/second-edition/ch04-01-what-is-ownership.html" rel="nofollow" target="_blank">The Rust Programming Language: What is Ownership?</a><ul><li>Also: <a href="https://doc.rust-lang.org/book/second-edition/ch04-02-references-and-borrowing.html" rel="nofollow" target="_blank">References and Borrowing</a></li></ul></li><li><a href="https://www.ponylang.org" rel="nofollow" target="_blank">Pony</a> is an open-source, object-oriented, actor-model, capabilities-secure, high performance programming language.</li><li><a href="http://jtfmumm.com/blog/2016/03/06/safely-sharing-data-pony-reference-capabilities/" rel="nofollow" target="_blank">Safely Sharing Data: Reference Capabilities in Pony</a></li></ul>

35. The Ownership Manifesto

Get a new Fatal Error episode every week by becoming a Patreon supporter! The Law of Demeter (also known as the Principle of Least Knowledge) shows up occasionally in code reviews and discussions of object-oriented programming practices. But what does it actually mean, and why should we use it?  Law of Demeter Set the settings set Easy Namespacing in Swift AVFoundation Programming Guide: Playback [[[[[playerItem tracks] objectAtIndex:0] assetTrack] asset] duration];   The Paperboy, The Wallet, and The Law Of Demeter

Get a new Fatal Error episode every week by becoming a <a href="https://www.patreon.com/fatalerror" rel="nofollow" target="_blank">Patreon supporter!</a> The Law of Demeter (also known as the Principle of Least Knowledge) shows up occasionally in code reviews and discussions of object-oriented programming practices. But what does it actually mean, and why should we use it? <ul> <li><a href="https://en.wikipedia.org/wiki/Law_of_Demeter" rel="nofollow" target="_blank">Law of Demeter</a></li> <li><a href="http://www.sicpers.info/2014/01/set-the-settings-set/" rel="nofollow" target="_blank">Set the settings set</a></li> <li><a href="http://khanlou.com/2016/06/easy-namespacing-in-swift/" rel="nofollow" target="_blank">Easy Namespacing in Swift</a></li> <li><a href="https://developer.apple.com/library/content/documentation/AudioVideo/Conceptual/AVFoundationPG/Articles/02_Playback.html#//apple_ref/doc/uid/TP40010188-CH3-SW1" rel="nofollow" target="_blank">AVFoundation Programming Guide: Playback</a><ul> <li><code>[[[[[playerItem tracks] objectAtIndex:0] assetTrack] asset] duration];</code></li> </ul> </li> <li><a href="http://www.ccs.neu.edu/research/demeter/demeter-method/LawOfDemeter/paper-boy/demeter.pdf" rel="nofollow" target="_blank">The Paperboy, The Wallet, and The Law Of Demeter</a></li></ul>

13. The Law of Demeter

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