JavaScript serves as the primary programming language for the web, and is currently utilized by more software developers than any other language. It is often claimed to be the backbone of modern web development, enabling developers to build interactive, dynamic, and feature-rich user experiences. As technology evolves, JavaScript has expanded far beyond its initial role of adding basic interactivity to websites, now serving as the foundation for full-stack development, mobile applications, and even machine learning projects.

Even if you only have a basic knowledge of HTML, you can build data-driven, interactive, dynamic websites by combining the open-source technologies with Web standards. Learning PHP, MySQL & JavaScript is a classic, step-by-step guide for teaching you how to do this. It has been updated many times, and always uses the latest core technologies of Web programming today, including PHP, MySQL, JavaScript, CSS, HTML5, jQuery, as well as React library.

JavaScript is currently the main programming language for the development of Web client, also the core of Ajax technology. And the both win of ECMAScript 5 and HTML5 in the battle over the standard made a large number of proprietary implementations and client extension enter into the official specification, also added a lot of new features for JavaScript to adapt to the future development.