How do I convert a javascript object array to a string array of the object attribute I want?

> Possible Duplicate:
> Accessing properties of an array of objects

Given:

[{    'id':1,    'name':'john'},{    'id':2,    'name':'jane'}........,{    'id':2000,    'name':'zack'}]

What's the best way to get:

['john', 'jane', ...... 'zack']

Must I loop through and push item.name to another array, or is there a simple function to do it?

If your array of objects is items, you can do:

var items = [{
  id: 1,
  name: 'john'
}, {
  id: 2,
  name: 'jane'
}, {
  id: 2000,
  name: 'zack'
}];

var names = items.map(function(item) {
  return item['name'];
});

console.log(names);
console.log(items);

Documentation: map()

Use the map() function native on JavaScript arrays:

var yourArray = [ {
    'id':1,
    'name':'john'
},{
    'id':2,
    'name':'jane'
}........,{
    'id':2000,
    'name':'zack'
}];

var newArray = yourArray.map( function( el ){ 
                                return el.name; 
                               });

You can do this to only monitor own properties of the object:

var arr = [];

for (var key in p) {
	if (p.hasOwnProperty(key)) {
		arr.push(p[key]);
	}
}

You can use this function:

function createStringArray(arr, prop) {
   var result = [];
   for (var i = 0; i < arr.length; i += 1) {
      result.push(arr[i][prop]);
   }
   return result;
}

Just pass the array of objects and the property you need. The script above will work even in old EcmaScript implementations.