Get key value of dictionary by index in jQuery

dictionary, javascript, javascript-objects, jquery

Solution

For object `_map`, you should use `for .. in`.

for (var key in _map) {
  _map[key] = this.data[key];
}

Problem

I have a javascript dictionary object which has a pre-set keys that are defaulted to `0`. Then I need to loop through the elements of this dictionary by index and use the value of the key to set its value. Below is my code to make things easier to understand: ``` var _map = { 'severity-normal': 0, 'severity-minimal': 0, 'severity-moderate': 0, 'severity-severe': 0, 'severity-highly-severe': 0 }; mapSeverities: function () { for (var i = 0; i < _map.length; i++) { //get the key value, ex: severity-normal, by index (which would by i) var key = //retrieved key value _map[key] = this.data(key); } } ``` In other words, suppose we're dealing with C#, I want to get the `KeyValuePair` at a certain index, then access its `Key` and `Value` properties. Any suggestions?

Original source