JavaScript construct equivalent to PHP's list()?

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Javascript equivalent of PHP's list()

In PHP you can do assignment like this:

list($b,$c,$d) = array("A","B","C");

Is there anything like that in JS?

score 2 · Answer 1 · answered Dec 07 '11 at 20:18

2

Yes this is possible since JavaScript 1.7

You can do:

function f() {  
  return [1, 2];  
}  

[a, b] = f();

answered Dec 07 '11 at 20:18

halfdan

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Unfortunately, need to support IE7 :( – Bill Software Engineer Dec 07 '11 at 20:24
I don't believe this works in Opera. Does anyone know if this works at all in `strict mode`? – btleffler Dec 07 '11 at 20:25
In that case you'll have to avoid that feature :( – halfdan Dec 07 '11 at 20:25
@btleffler: You can check it on that page: http://robertnyman.com/javascript/javascript-1.7.html – halfdan Dec 07 '11 at 20:27

score 1 · Accepted Answer · answered Dec 07 '11 at 21:18

1

People seem to hate the with() construct in javascript, but anyway...

function f(){return {a:1, b:2};}
with(f()) {
    alert(a);//1
}


// or
function combine(propertyNames, values) {
    var o = {};
    for (var i=0; i<propertyNames.length; i++) {
        o[propertyNames[i]] = values[i];
    }
    return o;
}

with (combine(['a', 'b'], [1, 2])) {
    alert(b);//2
}

answered Dec 07 '11 at 21:18

goat

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Which version of JS is this? Does IE7 support it? – Bill Software Engineer Dec 08 '11 at 13:19

score 0 · Answer 3 · answered Dec 07 '11 at 20:20

0

I believe that was introduced in JavaScript 1.7. Which means you can't really use it yet in the majority of browsers.

[a,b] = [14,15];
// or
[a,b] = [b,a];
// or
[a,b] = someFuncThatReturnsArray();

See MDN for more details.

answered Dec 07 '11 at 20:20

nnnnnn

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Really bummer, I need to support IE7. – Bill Software Engineer Dec 07 '11 at 20:25

JavaScript construct equivalent to PHP's list()?

3 Answers3