JavaScript Charts

This question is about how javascript prototypes work. In particular I do not understand why in th… Read more Javascript Prototype Chain Self Reference

Can anyone enlighten me, what is the difference between hasOwnProperty and propertyIsEnumerable: C… Read more Hasownproperty Vs Propertyisenumerable

Since when we declare a function we get its prototype's constructor property point to the funct… Read more Javascript: Overwriting Function's Prototype - Bad Practice?

var foo = { bar : 5 } Why is foo.hasOwnProperty('__proto__') equal to false? It can'… Read more Why Is Foo.hasownproperty('__proto__') Equal To False?

(I am studying prototype in javascript..) I need to dynamically add student details on a div and ke… Read more Using Javascript Prototype, Need To Dynamically Add Div Onclick

How can I simplify rounding in JavaScript? I wish that I could do it in a more elegantly in an obje… Read more Add A Rounding Method To Number.prototype In Javascript

function Scroller(id){ this.ID = id; this.obj = $('#'+id); this.currentSlide = … Read more Javascript Prototype Accessing Another Prototype Function

Normally when we create a new object using 'new' keyword, actually the __proto__ property o… Read more Where The __proto__ Is Pointing When We Change The Prototype Of The Parent Object?

I think the difference has clicked in my head, but I'd just like to be sure. On the Douglas Cro… Read more In Javascript, The Difference Between 'object.create' And 'new'

How can one detect if a given browser has the searchParams prototype for URL? https://developer.mo… Read more How To Tell If An Object Has A Given Prototype?

I have defined a class in JavaScript with a single method: function MyClass(text) { this.text =… Read more 'this' Keyword Overriden In Javascript Class When Handling Jquery Events

My question is about a strange output that I came across while playing with JS prototypal inheritan… Read more Js Prototype Objects Not Inherited?

Honestly, I am trying to understand JavaScript prototypes and I'm not making much progress. I … Read more How To Use Prototype For Custom Methods And Object Manipulation

I want to write code that adds the doNotInclude method to the Array.prototype object. The purpose … Read more Javascript: Add Method To Array.prototype Object To Exclude Index Values From An Input Array

So if we can get past the 'should you?' question ... does anyone know how to set the value … Read more Javascript Using Prototype How Can I Set The Value Of "this" For A Number?

I wrote the following: Object.prototype.length = function(){ var count = -1; for(var i in t… Read more I Tried To Prototype A Length() Method To Object And Broke Jquery – How?

In Google Chrom's javascript, objects have a property named __proto__ that points to their prot… Read more What Is In Object.__proto__?

I consider myself a JS veteran but just now for the first time I have realised that the for ... in … Read more For-in Loop Vs In-operator

I am using the Typed.React library which includes a method to extend one prototype definition with … Read more How To Clone A Prototype With Property Methods?

I have put together a fun API for game creation. In the code I create a prototype for Mover and the… Read more Javascript: Can't Handle Events For Multiple Instances