CoreExtended

atom.extend(object = atom, from)

Extend object with from properties.

Example: config

config = atom.core.extend({
	// default values for config
	a : 15,
	b : 20
}, config);

Example: extending atom

atom.core.extend({
	value: 123
});
alert(atom.value); // 123

atom.core.implement(object = atom, from)

Extend object.prototype with from properties.

Example: class extends

atom.core.implement(child, parent);

Example: expanding atom

atom.core.implement({
	test: function () {
		alert(123);
	}
});
var a = atom();
a.test(); // 123

atom.clone(object)

Returns clone of object

var cloneArray = atom.core.clone(oldArray);

atom.typeOf(object)

Returns type of object:

atom.core.typeOf( document.body ) == 'element'
atom.core.typeOf(  function(){} ) == 'function'
atom.core.typeOf(    new Date() ) == 'date'
atom.core.typeOf(          null ) == 'null'
atom.core.typeOf(     arguments ) == 'arguments'
atom.core.typeOf(        /abc/i ) == 'regexp'
atom.core.typeOf(            [] ) == 'array'
atom.core.typeOf(            {} ) == 'object'
atom.core.typeOf(            15 ) == 'number'
atom.core.typeOf(          true ) == 'boolean'

var MyClass = atom.Class({});
atom.core.typeOf( new MyClass() ) == 'class'

source here.