As with almost every programming language, JavaScript treats various types of values differently. A string like “Hello world” is very different from a number like 42.

Data types in JavaScript variables Variables hold a wide variety of information temporarily. The JavaScript data types that can be stored in a variable include: ...

Microsoft is opening up Excel to developers with a new JavaScript API. It will let developers use custom data types like images, cards, and arrays.

Microsoft's tutorials also assist participants setting up a development environment with Microsoft's popular Visual Studio Code editor, as well as installing Node.js as a JavaScript runtime. Users ...

Papa's Perspective 2 Great JavaScript Data-Binding Libraries JavaScript libraries help you build powerful, data-driven HTML5 apps. By John Papa 02/01/2012 Get Code Download Data binding is one of the ...

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. Built-in reactivity is one of ...

IndexedDB allows you to store data on the client to let the user work offline and to reduce demands on the server. Here's enough code to both get you started and to show you the difference between ...