How to use hashmap in javascript

Question

I have a hash map I want to use it in javascript. So I thought of converting it into javascript map..how to use it or to do?

As urgent as it may be, without context it is very difficult to provide useful feedback. There are differences between a Javascript object and a traditional "Map". Can you describe what you intend on storing in the javascript representation and how you intend on referencing the values? — jordancpaul
– jordancpaul, Commented Mar 11, 2011 at 2:14

alex · Accepted Answer · 2011-03-11 02:03:07Z

6

Turn it into an object literal...

var map = {
   'a' : 'a',
   'b': 'b'
   ...
};

answered Mar 11, 2011 at 2:03

alex

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Comments

Saurabh · Accepted Answer · 2011-03-11 02:18:56Z

0

Or use Associative Arrays, for example:

var arr = new Array();
arr["One"] = 1;
arr["Two"] = 2;
arr["Thr"] = 3;
arr["For"] = 4;

for(var i in arr)
{
    alert('Key='+i + ', Value = '+arr[i]);     
}

answered Mar 11, 2011 at 2:18

Saurabh

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2 Comments

Hello71 Over a year ago

There are no associative arrays in ECMAScript.

david Over a year ago

Your code works because Arrays are also objects. You shouldn't use arrays in this manner.

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