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.

Let’s add face detection to our React map explorer app using the pico.js JavaScript library Credit: Thinkstock Last week we enhanced a map interface with voice commands using annyang.

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 ...