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 …

Jul 8, 2025 · This article attempts to list the built-in data structures available in JavaScript and what properties they have. These can be used to build other data structures.

Data types represent the different kinds of values we can use in JavaScript. In this tutorial, you will learn about the various data types available in JavaScript with the help of examples.

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. …

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

Aug 1, 2025 · 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 basically specify what kind of data can be stored and manipulated within a program. There are six basic data types in JavaScript which can be divided into three main categories: …

Unlock the world of data types in JavaScript. From primitive types like numbers and strings to complex structures such as arrays and objects, explore how JavaScript manages and utilizes …

Explore the fundamental data types in JavaScript and learn how to effectively work with variables and values. This tutorial covers JavaScript data types, including numbers, strings, booleans, …