polyfill Array.prototype.map

/**
 * Array.prototype.map Polyfill
 */

Array.prototype.map = function(fun, thisp) {
	"use strict";
	if (this === void 0 || this === null) {
		throw new TypeError();
	}
	var t = Object(this);
	var len = t.length >>> 0;
	if (typeof fun !== "function") {
		throw new TypeError();
	}
	var res = [ ];
	for (var i = 0; i < len; i++) {
		if (i in t) {
			var val = t[i]; // in case fun mutates this
			res[i] = thisp ? fun.call(thisp, val, i, t) : fun(val, i, t);
		}
	}
	return res;
};

/* End of file map.js */


/* 
// add to polyfill.js :
	// Array.prototype.map
	map: {
		test: function() {
			return (!! Array.prototype.map);
		}
	},

*/