Built-in JavaScript objects and functions are ones you'll use all the time. Here's how to use Object, JSON, String, Math, Date, and console in your JavaScript programs.

Learn about JavaScript Object Notation and JSON objects and arrays, including how and why they're used. Also, find out how JSON compares to HTML and XML.

Get tips for instantiating JavaScript's prototype-based objects two ways: via constructor functions or object initialization.

How to Create a Text Box Dynamically in JavaScript. Some call it magic -- the ability to make objects appear suddenly out of nowhere. You can create this kind of magic on your website using a few ...

Topics covered include: Object creation Bracket vs Dot Notation Property descriptors How object references work Prototype chain Modern syntax like spread and destructuring Loop over objects Custom ...