Javascript Prototype Inheritance

inheritance.js

var Parent = function (arg1, arg2) {
  // TODO Define instance members here...
};

Parent.prototype.doSomething = function (arg) {
  // TODO Do something...
};

var Child = function (arg1, arg2) {
  Parent.call(this, arg1, arg2) // Call to super constructor
  // TODO Define instance members here...
};
Child.prototype = Object.create(Parent.prototype);

Child.prototype.doSomething = function (arg) {
  Parent.prototype.doSomething(arg); // Call to super method
  // TODO Do something else ?
}