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.

We asked visual search scientists, a metal-detecting enthusiast and a detective to share the most effective strategies to find missing objects.

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 ...