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.

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.

Dec 4, 2025 · JavaScript data types determine the nature of data stored in variables, affecting how values are processed and interacted with in the code. Each data type has specific …

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.

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. …

There are altogether 8 basic data types in JavaScript. Textual data. An integer or a floating-point number. An integer with arbitrary precision. Any of two values: true or false. A data type whose …

What does JavaScript’s type system look like? What is a Data Type? A data type is a set of values grouped together because certain operations apply to them. Every programming …

Mar 31, 2024 · Primitives are the simplest types of data in JavaScript. A primitive literal is a value, with no wrapper or properties of its own. Primitive literals are immutable, meaning they can't …

Data in JavaScript comes in various types like numbers, strings (which are just texts), booleans (true/false), arrays (lists of stuff), objects (bundles of related data), and other types to …

JavaScript includes data types similar to other programming languages like Java or C#. Learn about different data types supported in JavaScript.