Linq for Javascript

LinqJS

/* LinQ for Javascript
 * Author: Huy Tran - Email: kingbazoka@gmail.com
 */
/////////////////////////////////

Array.prototype.first = function(condition) {
	return this[0];
}

Array.prototype.last = function(condition) {
	return this[this.length-1];
}

Array.prototype.where = function(condition) {
	var self = this;
	var result = [];
	for (var i = 0; i < self.length; i++) {
		if ((typeof condition == "function") && (condition(self[i]))) {
			result.push(self[i]);
		}
	}
	return result;
}

////////////////////////////////////////////////

var arr = [];
arr.push({ name: "obj1", flag: true });
arr.push({ name: "obj2", flag: false });
arr.push({ name: "obj3", flag: false });
arr.push({ name: "obj4", flag: true });

var r = arr.where(function(i){return i.flag == true});

console.log(r);