up vote -1 down vote favorite

I need help with some arrays in JavaScript.

What I would like to do is something like this:

data=new array(
key => value,
key2 => value2,
key3 => value3,
...)

I don't know if its possible to do it in a similar way as you would do it in PHP.

I need to assign multiples key and values from a string in just one code line; I mean, in a simple way without using some kind of loop or something like that.

I'm trying without success with:

valor = "{'name':'facu','id':'12434'}";
ar = eval(valor);
name = ar['name'];
dni = ar['id'];

Edit

Thanks the people who answer, the problem is that the value of my var valor is assigned by a string returned by ajax... what I have is that, and in data I will receive a string like "{'name':'facu','id':'12434'}", so I need to assign that info to an array.

$.get("gestorAjax.php", { funcion: 'getAfiliado', legAfiliado: legAfiliado} ,  function(data){
    valor = eval(data)
});
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4  
Please read some introductory material about JavaScript and objects: developer.mozilla.org/en/JavaScript/Guide/… – Felix Kling May 6 '12 at 18:10
1  
please don't ever use eval. stackoverflow.com/questions/86513/… – Thomas Jones May 6 '12 at 18:14
Use getJSON instead of get. Then jQuery will decode the JSON data for you. – bažmegakapa May 6 '12 at 18:32

3 Answers

up vote 0 down vote

in JavaScript this isn't so much an array as it is an object but it would be something along the lines of

var data = {
key: value,
key2: value2
}

then you can do data[key] to get value

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up vote 0 down vote

Never use eval.

var data = 
{
'key'  : value,
'key2' : value2,
'key3' : value3
}

data is an js object not an array, but you can use it in your case (as hash keys),

e.g.

data.key or data[key] will give value.

p.s. Notice that value3 does not have an , (commma). Unlike php, its not optional

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up vote 0 down vote

I think simple javascript Object may me used here, i.e.:

var data = {
    key: 'value',
    key2: 'value2',
    keyN: 'valueN'
};

So, you can use it then as data.key or data['key'] and loop as

for (var key in data) {
    data[key];
}

For parsing obect from JSON request you may use JSON.parse function:

var data = JSON.parse('{"key1":"val1","key2":"val2","key3":"val3"}');

and then again use as data.key1 or data['key1']

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