Free, hosted Observable notebooks provide an interactive experience and lots of free, open-source Observable JS code you can reuse and learn from. Here's how to get started.

Microsoft: Learn JavaScript programming language for free with our new course Programmers keen on building browser applications can take advantage of Microsoft's free JavaScript video course.

Learn how to make the most of Observable JavaScript and the Observable Plot library, including a step-by-step guide to eight basic data visualization tasks in Plot.

Node.js allows scalable ѕtandalone Javascript server programs by bundling Google's V8 with libraries for event-based I/O. InfoQ takes a look at what makes Node.js tick.

While JavaScript has many applications, working with string values is one of the most popular. Strings are objects within the JavaScript language. They are not stored as character arrays, so built ...

There’s a little trick going around that lets you edit any content by implementing a single line of JavaScript. It utilizes an HTML5 document property that is not well known, but is well ...

Do you need to perform an Ajax file upload with pure JavaScript? This example lays out the steps to accomplish an Ajax file upload without the need for a JavaScript library like jQuery or Dojo.

JavaScript is now the world's most popular programming language, even though it started off as a side-kick to Java.