Subclassing a class with required parameters in JavaScript

Question

If subclassing a \"class\" in JavaScript is done like so:

var ParentClass = function() {
    // something
};


var ChildClass = function() {
    // something
};
         


        

Answer 1

A better way to inherit...

var inherit = (function () {
  var F = function () {}; // cache function
  return function (C, P) { // Accepts Constructor and Parent
    F.prototype = P.prototype;
    // faster prototype chain lookup than direct instantiation
    C.prototype = new F(); 
    C._super = P.prototype;
    C.prototype.constructor = C; // for checking instanceof
  };
}());