Beyond the usual quick tips, let's look at both the business case and the technical side of keeping React bundles lean.

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 is the most in-demand programming language for developer jobs and one of the most versatile languages for full-stack development. Here's what you need to know about JavaScript.

Learn what the "this" keyword does in JavaScript in 100 seconds. And stay tuned for a few minutes of more advanced discussion after the credits.

All three UI patterns are commonly found in design systems, with many lines of JavaScript to implement custom styling, presentation, layout, interaction, or accessibility patterns.