What Can JavaScript Do? JavaScript is the programming language of the web. It can calculate, manipulate and validate data. It can update and change both HTML and CSS.

Jul 19, 2025 · This chapter introduces JavaScript and discusses some of its fundamental concepts.

Jan 15, 2026 · JavaScript is a versatile, dynamically typed programming language that brings life to web pages by making them interactive. It is used for building interactive web applications, supports both …

Jul 6, 2023 · The goal of this handbook is to quickly introduce you to the basics of JavaScript so you can start programming applications. Instead of covering all the theories and concepts of JavaScript, I'll be …

JavaScript is easy to learn. This tutorial covers everything from basic JavaScript up to the latest 2025 version. Start learning JavaScript now » With our Try it Yourself editor, you can edit the source code …

Mar 31, 2024 · This course covers the fundamentals of JavaScript, from the basic rules that govern how the language is written to the built-in methods and properties it provides.

Aug 8, 2022 · JavaScript was initially created as a browser-only language, but it is now used in many other environments as well. Today, JavaScript has a unique position as the most widely-adopted …

2 days ago · Here we learn JavaScript, starting from scratch and go on to advanced concepts like OOP. We concentrate on the language itself here, with the minimum of environment-specific notes.

4 days ago · Introduction Today, almost every website and app uses one powerful programming language — JavaScript. When you click a button and a popup appears, when a form shows an error, …

Dec 11, 2023 · JavaScript is a programming language used to create dynamic content for websites. It is a lightweight, cross-platform, and single-threaded programming language. It's an interpreted …