noop-inheritance.js

function extend(base, parent) {
  for (var prop in parent) {
    if (!base.hasOwnProperty(prop)) {
      base[prop] = parent[prop];
    }
  }
}

function noop() {}

function Base() {}
Base.prototype = {
  start: noop,
  stop: noop,
  render: noop
};

function Widget() {}
Widget.prototype = {
  render: function () {
    console.log('rendering without needing to care about star or /stop');
  }
};
extend(Widget.prototype, Base.prototype);

function Module(name) {
  this.name = name || 'unknown';
}
Module.prototype = {
  start: function () {
    console.log('Module "' + this.name + '" is starting');
  },
  stop: function () {
    console.log('Module "' + this.name + '" is stopping');
  },
};
extend(Module.prototype, Base.prototype);

function invoke(method) {
  return function _invoke(obj) {
    obj[method]();
  };
}

function fakeFramework(items) {
  items.forEach(invoke('start'));
  items.forEach(invoke('render'));
  items.forEach(invoke('stop'));
}

fakeFramework([new Widget(), new Module(), new Widget(), new Module('foo')]);