Variables hold a wide variety of information temporarily. The JavaScript data types that can be stored in a variable include: JavaScript variables can hold a few other kinds of data, but these are by ...

JavaScript's typed arrays provide a way to work with binary data and to work with structures that would otherwise be very difficult. In this chapter from my forthcoming book we look at the basic idea ...

The whole of the JavaScript language is built on one central data structure - the associative array. Objects in JavaScript are just associative arrays and this causes a lot of confusion at first. But ...

is a senior correspondent and author of Notepad, who has been covering all things Microsoft, PC, and tech for over 20 years. Microsoft Excel used to only allow two types of data: text and numbers.

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 ...