Is there a javascript equivalent to unpack sequences like in python?

Question

a, b = (1, 2)

Please change the accepted answer to the one by Anthony. It's 2018 - all modern browsers (and node.js) support it now. — noamtm, Sep 10 '18 at 10:22
Thanks for the input @noamtm. I changed the accepted answer. — tback, Sep 10 '18 at 11:38

score 15 · Accepted Answer · edited Mar 01 '17 at 16:08

15

[a, b] = [1, 2]

Update:

Browser compatibility matrix:

edited Mar 01 '17 at 16:08

ShadowRanger

answered Jan 20 '10 at 10:56

Antony Hatchkins

why? which implementations are affected? do you have further links? – tback Jan 20 '10 at 11:00
3

In opera 10 works, in ff 3 works, in ie 8 doesn't, in chrome doesn't. Not universal indeed. – Antony Hatchkins Jan 20 '10 at 11:05
2

Well, for starters this code won't work in IE, Chrome or Safari implementations. I'm pretty sure major browser-wise this is only supported by Firefox and Opera. – Andy E Jan 20 '10 at 11:05
8

@Alsciende I'm tempted to flag you comment as offensive for mentioning IE6 ;) – tback Jan 20 '10 at 11:06

score 8 · Answer 2 · answered Jan 20 '10 at 10:53

8

There isn't. JavaScript doesn't have such syntax sugar.

answered Jan 20 '10 at 10:53

Marcin

1

this answer is less correct than mine. The accepted answer should be 'among modern browsers only Firefox has this feature'. – Antony Hatchkins Apr 24 '14 at 04:07
@AntonyHatchkins and Marcin, it's in ECMAScript 2015: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment – leewz Sep 23 '15 at 00:51
This answer is no longer correct. See @AntonyHatchkins's answer. – noamtm Sep 10 '18 at 10:23

score -4 · Answer 3 · answered Jan 20 '10 at 11:07

-4

An object cannot contain a reference to an integer, only its value. So I can't see any way to do what you ask in javascript.

answered Jan 20 '10 at 11:07

Alsciende

3 Answers3