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: ...

A new JavaScript API will be available to preview inside Excel later this month, which will let developers create these custom data types for inputs and outputs and enable custom functions. Excel ...

Microsoft is backing a proposal to bring optional and erasable type syntax to JavaScript, potentially making the company’s TypeScript language, which builds on JavaScript, faster and easier to ...