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. The language overview …

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, …

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.

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 be changed …

Aug 1, 2025 · 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 …

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 represent …

Jul 7, 2025 · In JavaScript, understanding Data Types is crucial because they determine how information is. This article breaks down data types from the basics, making it beginner friendly. We’ll …

Jun 20, 2025 · In JavaScript, every value has a data type. Understanding data types is fundamental in writing error-free and logical code. It affects how values are stored, compared, and manipulated. …