Referencing keys in a Javascript object

Question

var foo = { someKey: "someValue" };
var bar = "someKey";

How do I get the value "someValue" using foo and bar? OK, the PHP equivalent:

$foo = array("someKey" => "someValue");
$bar = "someKey";
print $foo[$bar]; // someValue

So... I'm looking for the JS equivalent for the above, except I don't wanna use a JS array. Help please?

Luca Matteis · Accepted Answer · 2009-02-06 03:30:46Z

4

Like this:

foo[bar]

You use square brackets to reference string key values.

foo.someKey is equal to foo["someKey"]

answered Feb 6, 2009 at 3:30

Luca Matteis

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1 Comment

I ticked your answer cos you were 1 minute faster.

davogones · Accepted Answer · 2009-02-06 03:31:09Z

2

foo[bar] should do it. In js objects are basically glorified hashtables.

answered Feb 6, 2009 at 3:31

davogones

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