Meaning of "<-" in Swift

Question

I am reviewing a code from other developers and I saw some unfamiliar codes. One of the unfamiliar code is this.

identifier <- map["id"]

identifier is a variable inside the struct. Can you please help me what is the use of "<-" symbol? I tried googling it but I can't find the right answer. Thank you!

Thank you @EricD I will ask the other developer about the lib he use. Thank you. :) — Alvin John, Aug 03 '16 at 09:36

score 7 · Accepted Answer · edited Aug 03 '16 at 09:38

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The <- operator is not part of Swift.

There's nothing in the Swift manual about it.

It is a custom operator defined by a third-party library you're using in your project.

If you do a CMD-click on it, Xcode should open the operator's declaration

edited Aug 03 '16 at 09:38

Antzi

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answered Aug 03 '16 at 09:36

Eric Aya

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score 0 · Answer 2 · answered Aug 03 '16 at 09:57

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The Developer used ObjectMapper. https://github.com/Hearst-DD/ObjectMapper

That's why. Thank you guys for answering my post here.

Cheers!

answered Aug 03 '16 at 09:57

Alvin John

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More specifically, this is where the operator " – Federico Zanetello Aug 03 '16 at 10:02

Meaning of "<-" in Swift

2 Answers2