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.

Get tips for instantiating JavaScript's prototype-based objects two ways: via constructor functions or object initialization. Topics Spotlight: New Thinking about Cloud Computing ...

The Date object in JavaScript is the main element when it comes to handling date and time. It records a single point in time as the milliseconds’ number elapsed since the 1st January 1970 00:00: ...

What is JSON (JavaScript Object Notation)? JSON (JavaScript Object Notation) is a text-based, human-readable data interchange format used to exchange data between web clients and web servers. The ...

All Web APIs (Application Programming Interface) supply code so that you don’t have to. They handle the intricate low-level details, allowi ...

JavaScript creates an XMLHttpRequest object. This object sends a request to the corresponding web server. The server processes the request and sends a response back to the browser. JavaScript reads ...

A JSON file is a file that keeps basic data configurations and objects in JavaScript Object Notation (JSON) format, which is a universal data interchange format. It is mainly used for transferring ...