What’s the best way to define a class in javascript

// Define a class like thisfunction Person(name, gender){   // Add object properties like this   this.name = name;   this.gender = gender;}// Add methods like this.  All Person objects will be able to invoke thisPerson.prototype.speak = function(){    alert("Howdy, my name is" + this.name);}// Instantiate new objects with 'new'var person = new Person("Bob", "M");// Invoke methods like thisperson.speak(); // alerts "Howdy, my name is Bob"

 

 

 

See detail:

http://stackoverflow.com/questions/387707/whats-the-best-way-to-define-a-class-in-javascript