Javascript array in php style

Question

Possible Duplicate:
Associative arrays in Javascript?

Is it possible to do in javascript something like this:

array('one' => 'value-1','two'=> 'value-2');

And after that access it like this $var['one'] and to return value-1 I'm kinda new to JS, and google didn't gave me a good answer.

the proper term for that type of array is an "associative array" which will provide much more information on Google. — Matt Whipple, Jan 19 '13 at 21:15

score 3 · Accepted Answer · edited Jan 19 '13 at 22:24

3

Yes and no - you can create an object like this:

var theObject = { one: "value 1", two: "value 2" };

but it's not an array. True arrays in JavaScript have strictly numeric indexes. (You can add string-named properties to a JavaScript array object, but they're not accounted for in the .length of the array.)

edit — to add properties to the object (or any object), you can use the . or [] operators:

theObject.newProperty = "something new";

theObject[ computeNewPropertyName() ] = "wow";

The second example shows the [] operator, which is used when the name of a property is computed dynamically some how (in the example, by a function call, but it could be any expression).

edited Jan 19 '13 at 22:24

Dagg Nabbit

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answered Jan 19 '13 at 21:14

Pointy

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and if I want later to add new items to the object, how do I do it? let's say that I have one,two in the object already, and I want to add five,six to the object, but in other part of the code, how do I do it? – Uffo Jan 19 '13 at 21:24
@Uffo: You can use `theObject.five = '5'` or `theObject['five'] = '5'`. – Blender Jan 19 '13 at 21:27
@Uffo I'll update the answer. – Pointy Jan 19 '13 at 21:27

score 2 · Answer 2 · answered Jan 19 '13 at 21:14

2

Yep, it's called an object:

var your_object = {
    'one': 'value-1',
    'two': 'value-2'
};

answered Jan 19 '13 at 21:14

Blender

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score 2 · Answer 3 · answered Jan 19 '13 at 21:15

2

hah))) in normal languages this is called a dictionary))) In javascript you can create dictionary or object like this

    a = {"one":"value-1", "two":"value-2"}

a["one"] returns "value-1"

answered Jan 19 '13 at 21:15

AlexMost

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score 1 · Answer 4 · answered Jan 19 '13 at 21:16

1

Try

Array (an ordered, indexed set of items) :

var myArray = [
    'value-1',
    'value-2'
];

Object (an orderless set of keyed properties):

var myObject = {
    'one': 'value-1',
    'two': 'value-2'
};

answered Jan 19 '13 at 21:16

Beetroot-Beetroot

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Javascript array in php style

4 Answers4