ECMA5 Class inheritance inspired by Babel

inheritance.js

"use strict";

function classDefine(subClass, prototype, staticMembers){
  return classInherit(Object, subClass, prototype, staticMembers);
}
function classInherit(superClass, subClass, prototype, staticMembers){
  subClass.prototype = Object.create(superClass.prototype, {
    super: {value: superClass, enumerable: false, writable: false, configurable: true },
    constructor: {value: subClass, enumerable: false, writable: false, configurable: true },
  }); // Extend the prototype from super class
  subClass.__proto__ = superClass; // Link the actual proto chaining
  Object.assign(subClass.prototype, prototype || {}); // Shortcut to define sub class instance methods
  Object.assign(subClass, staticMembers || {}); // Shortcut to define sub class instance methods
  return subClass;
}