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  1. JavaScript Data Types - W3Schools

    Most programming languages have many number types: float (32-bit), double (64-bit). Javascript numbers are always double (64-bit floating point). All JavaScript numbers are stored in a 64-bit …

  2. JavaScript data types and data structures - JavaScript | MDN

    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 …

  3. JavaScript Data Types - GeeksforGeeks

    Oct 5, 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 properties …

  4. Data types - The Modern JavaScript Tutorial

    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. …

  5. JavaScript Data Types (with Examples) - Programiz

    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 …

  6. JavaScript DataTypes

    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 …

  7. Data types and structures - web.dev

    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 …

  8. JavaScript Types: What Are They and How Do You Check Them?

    Aug 1, 2025 · Every value in JavaScript has a type, one of these nine: When working with a value, the language will often check that it has the right type. Depending on the specific case, a value …

  9. Understanding the JavaScript Data Types - Tutorial Republic

    In this tutorial you will learn about the data types available in JavaScript. Data types basically specify what kind of data can be stored and manipulated within a program. There are six basic …

  10. Understanding Data Types in JavaScript: A Comprehensive Guide

    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. …