JavaScript Object keys

You can create an object in three different ways: Using object literal. By creating instance of Object directly. By using constructor function.

A new object is created, inheriting from Foo. prototype . The constructor function Foo is called with the specified arguments, and with this bound to the newly created object. new Foo is equivalent to new Foo() , i.e. if no argument list is specified, Foo is called without arguments.

A new object is created, inheriting from Foo. prototype . The constructor function Foo is called with the specified arguments, and with this bound to the newly created object. new Foo is equivalent to new Foo() , i.e. if no argument list is specified, Foo is called without arguments.