can/util/array/each.js

MIT-licensed, client-side, JavaScript framework that makes building rich web applications easy.

/* jshint maxdepth:7*/
steal('can/util/can.js', 'can/util/array/isArrayLike.js', function (can) {



	can.each = function (elements, callback, context) {
		var i = 0,
			key,
			len,
			item;
		if (elements) {
			if ( can.isArrayLike(elements) ) {
				if(can.List && elements instanceof can.List ) {
					for (len = elements.attr("length"); i < len; i++) {
						item = elements.attr(i);
						if (callback.call(context || item, item, i, elements) === false) {
							break;
						}
					}
				} else {
					for (len = elements.length; i < len; i++) {
						item = elements[i];
						if (callback.call(context || item, item, i, elements) === false) {
							break;
						}
					}
				}

			} else if (typeof elements === "object") {

				if (can.Map && elements instanceof can.Map || elements === can.route) {
					var keys = can.Map.keys(elements);
					for(i =0, len = keys.length; i < len; i++) {
						key = keys[i];
						item = elements.attr(key);
						if (callback.call(context || item, item, key, elements) === false) {
							break;
						}
					}
				} else {
					for (key in elements) {
						if (Object.prototype.hasOwnProperty.call(elements, key) && callback.call(context || elements[key], elements[key], key, elements) === false) {
							break;
						}
					}
				}

			}
		}
		return elements;
	};
	return can;
});