JavaScript Apprenticeships

I'm trying to use defineProperty to made attributes not appear in for...in cycle, but it doesn&… Read more Javascript Defineproperty To Make An Attribute Non Enumerable

I'm currently working on a HTML5 Canvas project (I wrote a separate question about it here). I … Read more Html5 Canvas: Using Constructor Functions To Create Complex Canvas Shapes

I was looking for solutions for calling Javascript constructors with an arbitrary number of argumen… Read more Binding/applying Constructors In Javascript

After my last question, this one is more accurate for me: example: function Foo() { this.bla = … Read more “var” Variables, "this" Variables And "global" Variables - Inside A Javascript Constructor

I'm trying to get the name of an object and put it in an array after it's defined, I tried … Read more Getting The Name Of A Defined Object With A Constructor

Say we create a Function named 'Shape', and add a property 'name' & method '… Read more Javascript `new` Operator & Prototype

I am experimenting with DOM event handlers, and I put in my Constructor's prototype a function … Read more Event Handler Function In Prototype's Method, Why Does It Think .keycode Is A Property Of Undefined In Javascript?

My debugging work in IE ended today by finding that constructor.name is undefined. I created the fo… Read more Constructor.name Is Undefined In Internet Explorer

For my class I needed to create a constructor, object, and prototype. Unfortunately I cannot get th… Read more Issue With Prototype In Js

I'm trying to create a new object by using an already made object. This is what I am trying to … Read more Javascript Constructor - Use An Object?

Here is a simple example of what I want : var ConstBuilder = function() { var constructor = fun… Read more Javascript Build A Constructor Of Constructors

I am trying to call a method from the constructor of my javascript constructor, is this possible an… Read more Calling A Method In A Javascript Constructor And Accessing Its Variables

Someone in the question Is there any reason to manually return in a constructor function mentioned … Read more What Version Of Javascript Introduced Arbitrary Constructor Return?

example: function Foo() { this.bla = 1; var blabla = 10; blablabla = 100; this.getB… Read more What Happens With "var" Variables Inside A JavaScript Constructor?

Hi this is from a challenge I was working on. Is there any way i can add the introduce method to th… Read more Adding A Method To An Object That Is Inside Of A Function In Js

The ECMAScript specification function IsCallable returns true iff its argument has a [[Call]] inter… Read more Are There Any JS Objects For Which IsCallable Is False But IsConstructor Is True?