extend (as jQuery.extend)

usage

1. extend( target [, object1 ] [, objectN ] )
2. extend( [deep ], target, object1 [, objectN ] )

example (from jQuery)

// Merge two objects, modifying the first.
var object1 = {
	apple: 0,
	banana: { weight: 52, price: 100 },
	cherry: 97
};
var object2 = {
	banana: { price: 200 },
	durian: 100
};
// Merge object2 into object1
extend( object1, object2 );


// Merge two objects recursively, modifying the first.
var object1 = {
	apple: 0,
	banana: { weight: 52, price: 100 },
	cherry: 97
};
var object2 = {
	banana: { price: 200 },
	durian: 100
};
// Merge object2 into object1, recursively
extend( true, object1, object2 );  


// Merge defaults and options, without modifying the defaults. This is a common plugin development pattern.
var defaults = { validate: false, limit: 5, name: "foo" };
var options = { validate: true, name: "bar" };
// Merge defaults and options, without modifying defaults
var settings = extend( {}, defaults, options );