ES6 Classes Polyfill (via public-webapps, A Wirfs-Brock)

gistfile1.txt

// ES6
class Sub extends Super {
  constructor() {/*constructor body */ }
  method1 () {}
  static method2 {}
}

// ES3/5
function Sub() {/*constructor body */ }
Sub.__proto__ = Super;
Sub.prototype = Object.create(Super.prototype);
Sub.prototype.method1 = function method1() {};
Sub.method2 = function method2 () {};