index.js
function inherit(inheritor, inherited) {
    inheritor.prototype = Object.create(inherited.prototype);
    inheritor.prototype.constructor = inheritor;
  }
function inherit(inheritor, inherited) {
    inheritor.prototype = Object.create(inherited.prototype);
    inheritor.prototype.constructor = inheritor;
  }
function inherit ( inheritor , inherited ) { inheritor . prototype = Object . create ( inherited . prototype ) ; inheritor . prototype . constructor = inheritor ; }
Utility function for class inheritance.
Utility function for class inheritance .