JavaScript Free Quiz

JavaScript (“JS” for short) is a full-fledged dynamic programming language that can add interactivity to a website. It was invented by Brendan Eich (co-founder of the Mozilla project, the Mozilla Foundation, and the Mozilla Corporation).

JavaScript is versatile and beginner-friendly. With more experience, you’ll be able to create games, animated 2D and 3D graphics, comprehensive database-driven apps, and much more!

JavaScript itself is relatively compact, yet very flexible. Developers have written a variety of tools on top of the core JavaScript language, unlocking a vast amount of functionality with minimum effort. These include:

• Browser Application Programming Interfaces (APIs) built into web browsers, providing functionality such as dynamically creating HTML and setting CSS styles; collecting and manipulating a video stream from a user’s webcam, or generating 3D graphics and audio samples.
• Third-party APIs that allow developers to incorporate functionality in sites from other content providers, such as Twitter or Facebook.
• Third-party frameworks and libraries that you can apply to HTML to accelerate the work of building sites and applications.

Why is JavaScript So Popular?

JavaScript was far from loved at first. Java developers viewed it as a lesser entity for non-engineers — “UI glue” with sparse tooling and a “weird” inheritance system – and designers and authors still struggled to manipulate page elements like form fields.

In spite of these issues, JavaScript took off quickly, and development of new tools and web page features outpaced the delivery of actual Java applets. Microsoft was compelled to reverse-engineer JavaScript support into Internet Explorer as “JScript” in 1996, but the attempt was imperfect, yielding various incompatibilities between JavaScript and JScript.