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The thin arrow in Swift is used to define to result type of a function / closure.
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<div class="">someFuncWithClosure { (a: Int, b: Int) -> String in "\($0 + $1)" }</div>
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<div class="">Am I understanding this correctly that</div>
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<div class="">your first suggestion is</div>
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<div class="">someFuncWithClosure { (a: Int, b: Int) -> String => "\($0 + $1)" }</div>
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<div class="">and your second suggestion is</div>
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<div class="">someFuncWithClosure { (a: Int, b: Int) => String in "\($0 + $1)" }</div>
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<div class="">?</div>
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<div class="">C# doesn't allow specifying the return type for closures (you have to define a delegate type first)</div>
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<div class="">someFuncWithClosure((int a, int b) => string.Format("{0}", a + b));</div>
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<div class="">Etan</div>
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<div class="">On 18 Dec 2015, at 18:35, David Fekke via swift-evolution <<a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a>> wrote:</div>
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<div dir="ltr" class="">In wanted to propose either adding the fat arrow (=>), or replacing the thin arrow with the fat arrow.
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<div class="">I know that Java uses the thin arrow, but JavaScript, TypeScript and C# both allow the use of the fat arrow for lambda syntax.</div>
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<div class="">Thoughts?</div>
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<div class="">Thanks,</div>
<div class="">David Fekke </div>
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