Executable Array (Executable Array of Callbacks)

ExecutableArray.js

/**
 * @class	ExecutableArray
 * @extends	Array.prototype
 * @param	{Array}	arr	Original Array (if any)
 * @author	Joseph Dalrymple <me@swivel.in>
 * @description	Implements `call` and `apply` on an Array-like object
 */
var ExtNodeList = (function(){
	/**
	 * Constructor Function
	 * @constructor
	 * @description	Adds elements from supplied Array to self
	 */
	var Constructor = function(arr){
		if (!arr || arr.length < 1) return;
		// If Array provided, set
		for(var i=0;i<this.length;i++) this.push(arr[i]);
	};

	/**
	 * Methods and Properties
	 */
	Constructor.prototype = Object.create(
		// Implement the Array Prototype
		Array.prototype || Object.getPrototypeOf(Array.prototype),

		// Enhance existing methods
		{
			/**
			 * @function
			 * @name call
			 * @description Execute all callbacks using `call`
			 * @returns {Array} Return values
			 */
			call: {
				writable: false,
				configurable: false,
				enumerable: false,
				value: function() {
					var ret = [];

					// Iterate over contained nodes
					for(var i=0;i<this.length;i++) {
						var elem = this[i];
						
						ret.push(
							Function.prototype.call.apply(elem, arguments)
						);
					}

					// Return resulting ExtNodeList
					return ret;
				}
			},


			/**
			 * @function
			 * @name apply
			 * @description Execute all callbacks using `apply`
			 * @returns {Array} Return values
			 */
			apply: {
				writable: false,
				configurable: false,
				enumerable: false,
				value: function() {
					var ret = [],
					
						args = Array.prototype.slice.apply(arguments),
						context = Array.prototype.splice.apply(args,[0,1]);

					// Iterate over contained nodes
					for(var i=0;i<this.length;i++) {
						var elem = this[i];
						
						ret.push(
							Function.prototype.apply.apply(elem,[context, args])
						);
					}

					// Return resulting ExtNodeList
					return ret;
				}
			}
		}
	);

	// Set declared Constructor to ExtNodeList var
	return Constructor;
})();