Matthew Tyson updated the article with newer syntax and code examples in May 2024. This article covers a sample of JavaScript statements you are most likely to see and use in your JavaScript programs.

When you annotate JavaScript code to create TypeScript, most of the type information you apply will be familiar, since they’ll come from JavaScript types. But how and where you apply those types ...

Unlike many other languages, JavaScript does not distinguish between integers and floating-point numbers. 42 and 3.14 are both Number types. BigInt, as its name suggests, only covers integers, and ...

Grabbing snippets of code to run in Node.js—one of the most popular languages to develop networked software today—could be seen as a way to pull old code into the 21 st century.