Return a new object from an array of key/value pairs

object-extras.js

/**
* Return a new object from an array of key/value pairs. 
* Inspired by the "dict" constructor in python.
*
* @method dict
* @param {Array} arr An array of key/value pairs.
* @return {Object} A new object
* @static
*/	
Y.namespace('Object').dict = function(arr) {
	for (var o = {}, i = 0, l = arr.length; i<l; i++) {
		o[arr[i][0]] = arr[i][1];
	}
	return o;
};