A JavaScript variable can hold 8 types of data. 7 Primitive Data Types and 1 Object Data Type. The Object data type can hold many different object types.

Jan 19, 2026 · JavaScript data types define what kind of values a variable can hold and how those values behave in a program. They determine how data is stored in memory and how operations like …

Jul 9, 2024 · There are eight basic data types in JavaScript. Here, we’ll cover them in general and in the next chapters we’ll talk about each of them in detail. We can put any type in a variable. For example, …

JavaScript Data Types Data types represent the different kinds of values we can use in JavaScript. There are altogether 8 basic data types in JavaScript. ... Note: JavaScript data types are divided …

Explore the different data types in JavaScript, including strings, numbers, booleans, and more. Learn how to effectively use them in your code.

Jul 8, 2025 · Programming languages all have built-in data structures, but these often differ from one language to another. This article attempts to list the built-in data structures available in JavaScript …

JavaScript data types include primitive types: undefined, null, string, boolean, number, BigInt, and symbol, and the complex type object.

Sep 4, 2025 · The problem: JavaScript has 8 data types, but most tutorials make them sound complicated. My solution: Learn them in order of how often you'll actually use them.

Aug 17, 2009 · Javascript has a typeof operator that returns a string that names the datatype of its argument. So, you could say that the datatypes in Javascript are all the possible return values of …

Learn all JavaScript data types: strings, numbers, booleans, null, undefined, objects, arrays, and symbols. Interactive examples and type checking included.