Core.js

//..

// Type

var Type = this.Type = function(name, object){
	if (name){
		var lower = name.toLowerCase();
		var typeCheck = function(item){
			return (typeOf(item) == lower);
		};

		Type['is' + name] = typeCheck;
		if (object != null){
			object.prototype.$family = (function(){
				return lower;
			}).hide();
			//<1.2compat>
			if (has('1.2compat')){
				object.type = typeCheck;
				//</1.2compat>
			}
		}
	}

	if (object == null) return null;

	object.extend(this);
	object.$constructor = Type;
	object.prototype.$constructor = object;

	return object;
};


if (has('1.2compat')){

//<1.2compat>

var Hash = this.Hash = new Type('Hash', function(object){
	if (typeOf(object) == 'hash') object = Object.clone(object.getClean());
	for (var key in object) this[key] = object[key];
	return this;
});

Hash.implement({

	forEach: function(fn, bind){
		Object.forEach(this, fn, bind);
	},

	getClean: function(){
		var clean = {};
		for (var key in this){
			if (this.hasOwnProperty(key)) clean[key] = this[key];
		}
		return clean;
	},

	getLength: function(){
		var length = 0;
		for (var key in this){
			if (this.hasOwnProperty(key)) length++;
		}
		return length;
	}

});

Hash.alias('each', 'forEach');

Object.type = Type.isObject;

var Native = this.Native = function(properties){
	return new Type(properties.name, properties.initialize);
};

Native.type = Type.type;

Native.implement = function(objects, methods){
	for (var i = 0; i < objects.length; i++) objects[i].implement(methods);
	return Native;
};

var arrayType = Array.type;
Array.type = function(item){
	return instanceOf(item, Array) || arrayType(item);
};

this.$A = function(item){
	return Array.from(item).slice();
};

this.$arguments = function(i){
	return function(){
		return arguments[i];
	};
};

this.$chk = function(obj){
	return !!(obj || obj === 0);
};

this.$clear = function(timer){
	clearTimeout(timer);
	clearInterval(timer);
	return null;
};

this.$defined = function(obj){
	return (obj != null);
};

this.$each = function(iterable, fn, bind){
	var type = typeOf(iterable);
	((type == 'arguments' || type == 'collection' || type == 'array' || type == 'elements') ? Array : Object).each(iterable, fn, bind);
};

this.$empty = function(){};

this.$extend = function(original, extended){
	return Object.append(original, extended);
};

this.$H = function(object){
	return new Hash(object);
};

this.$merge = function(){
	var args = Array.slice(arguments);
	args.unshift({});
	return Object.merge.apply(null, args);
};

this.$lambda = Function.from;
this.$mixin = Object.merge;
this.$random = Number.random;
this.$splat = Array.from;
this.$time = Date.now;

this.$type = function(object){
	var type = typeOf(object);
	if (type == 'elements') return 'array';
	return (type == 'null') ? false : type;
};

this.$unlink = function(object){
	switch (typeOf(object)){
		case 'object': return Object.clone(object);
		case 'array': return Array.clone(object);
		case 'hash': return new Hash(object);
		default: return object;
	}
};

//</1.2compat>
}

Features.js

has.add('1.2compat', (function(){ return true });
//has.add ...