I remember reading somewhere (I think it was in one of Crockford's papers) that using an array lit

With objects especially, I don't understand what parts of the object run before initialization, wh

In Javascript, you can extend existing classes by using its prototype object:String.prototype.getFirstL

I have been wondering for a while if I can use a variable in JS before it is defined,such as the follo

What happens in JavaScript if I have a variable, say: var exampleObject = {one:'foo',two:

Like the title says, what's the best way in JavaScript to get all radio buttons on a page with a g

I have a website that hosts a dashboard: I can edit the JavaScript on the page and I currently have it

In JavaScript, the "this" operator can refer to different things under different scenarios. T

Take the following loop:for(var i=0; i<100; ++i){let result = await some_slow_async_function();do_so

in javascript,var a = '';var b = (a) ? true : false;var b will be set to false.is this a def

The DOM method document.querySelectorAll() (and a few others) return a NodeList.To operate on the list,

Possible Duplicate:Easiest way to find duplicate values in a javascript arrayHow do I check if an arra

I would like to create an object with a member added conditionally.The simple approach is:var a = {};