Swift, the new way to build iOS Apps. Here's how

Re:Swift, the new way to build iOS Apps. Here's how by rubiquity on Tuesday June 03, 2014 @09:15AM (#7839939)

What features of Swift do you find functional? What kind of functional features are you using? I'm asking out of genuine curiosity, not to put you on the spot. Thanks!

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Re:Swift, the new way to build iOS Apps. Here's how by bitpew on Tuesday June 03, 2014 @09:41AM (#7840093)

Not to speak for the OP, but two features bear resemblance to functional programming languages:

1) Function Types ( = higher order functions)

This allows functions to be passed around as function parameters or return values.

2) Immutable variables via let

let a = 1 // a is always bound to the constant 1

a = 2 // error

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[deleted]

Re:Swift, the new way to build iOS Apps. Here's how by ktran03 on Tuesday June 03, 2014 @10:25AM (#7840356)

“The value of a constant doesn’t need to be known at compile time, but you must assign it a value exactly once.”

Excerpt From: Inc, Apple. “The Swift Programming Language.” Apple Inc.

Check out this book on the iBooks Store: https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewBook?...

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Re:Swift, the new way to build iOS Apps. Here's how by rubiquity on Tuesday June 03, 2014 @10:37AM (#7840433)

Thanks for clearing that up. I misread the example in the Swift Programming Language reference.

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Re:Swift, the new way to build iOS Apps. Here's how by emsy on Tuesday June 03, 2014 @09:51AM (#7840137)

I couldn't find any built in list/map/set comprehension. Did they leave it out or did I just miss it?

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Re:Swift, the new way to build iOS Apps. Here's how by dilap on Tuesday June 03, 2014 @12:02PM (#7840970)

A big one is sum types (which it calls enum, a la rust), which come from ML.

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