Built-in object types can be: objects, arrays, dates, maps, sets, intarrays, floatarrays, promises, and more. A JavaScript variable can hold any type of data. In programming, data types is an important concept. To be able to operate on variables, …

Data types represent the different kinds of values we can use in JavaScript. 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 variable is not initialized. Denotes a null value.

Mar 8, 2025 · In JavaScript, each value has a data type, defining its nature (e.g., Number, String, Boolean) and operations. Data types are categorized into Primitive (e.g., String, Number) and Non-Primitive (e.g., Objects, Arrays).

Aug 19, 2024 · In JavaScript, we store values of different types in variables. These values have different attributes/properties and the type of data a variable holds will determine the operations you can perform with that variable.

Jan 29, 2025 · JavaScript supports various datatypes, which can be broadly categorized into primitive and non-primitive types. Primitive datatypes represent single values and are immutable. 1. Number: Represents numeric values (integers and decimals). 2. String: Represents text enclosed in single or double quotes. let s = "Hello, World!"; 3.

Aug 20, 2024 · Understanding these data types is crucial for writing efficient and error-free code. In this comprehensive guide, we'll explore each data type in detail, providing practical examples and insights to help you master JavaScript's type system.

JavaScript data types include primitives (string, number, boolean, null, undefined, symbol) and objects (arrays, functions). Use typeof to check types dynamically.

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 different kinds of information. Each type of data plays a role.

Apr 17, 2025 · When you are writing code in JavaScript, you work with different types of data like numbers, words, and lists and these data are known as JavaScript data types. In this blog, we will discuss what JavaScript data types are, including primitive data types and non-primitive data types, and how you can use them. Table of Contents:

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, a variable can at one moment be a string and then store a number: