I have just seen a google tech talk presented by John Resig where he said jQuery operates as an array. Following that advice I have been playing with a subclassed array and it works great but I have been looking through the jQuery source and can'...
I recently came across this great post by Dr. Axel Rauschmayer:  http://www.2ality.com/2015/02/es6-classes-final.html  The following snippet roughly describes how ECMAScript 6 prototype chains work from an ECMAScript 5 point of view (section 4.2 of t...
I have a Base class as  class Base {     constructor() {         console.log('should get called')     } }   and a Target class as  class Target {     someFn() {         // does something     } }   I want to make Target extend Base after its d...
I'm writing an library in CoffeScript (so JS), and it is heavy math.. I really need to work with typed arrays (Float64Array) and all the performance they offer.  So what is the best way to extend the typed array functionality ??  Currently I'...
Suppose we have an abstract class Animal:  function Animal(){}; Animal.prototype.communicate = function(metadata){    //ABSTRACT };   And then we have a Duck class:  function Duck(){}; Duck.prototype = new Animal(); Duck.prototype.communicate = funct...
Here is my parent class:  class Parent {   constructor(id, label, header="") {     this.id = id;     this.label = label;     this.header = header;   } }   You can set the header manually if you like, and it will default to "".  For so...
I want to use an if statement to select the value of a subclass in an image slider. If the input value is 'yes', it changes the text color.  Javascript: $('document').ready(function(){          if $('.slide-active').find('...
I have the following two question about the subclass.   Why am I only able to see this object if the property objectCaching: false?  If objectCaching: true and I scale my canvas, then I eventual see the object.  However, when I set objectCaching: fal...
I have a problem with subclassing built-in Number class. I can change properties but I want to change original number which class holds e.g. I want to call a setter method and it will recreate instance with new constructor paramet...

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