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

What is prototype pollution As the name suggests, prototype pollution refers to an attacker's ability to modify a JavaScript object's prototype.

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.

JavaScript has gone through a number of changes in the past few years. Implementations have become faster, more standardized and more stable. The development and growth of open-source JavaScript ...