Function.prototype.method

Function.prototype.method.js

  Function.prototype.method = function(name, implementation) {
  	this.prototype[name] = implementation;
		return this;
	};

	var Person = function(name) {
		this.name = name;
	}.method("getname", function() {
		alert(this.name)
	});
        
  (new Person("lianglinag")).getname();