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  1. 123

    JavaScript is a high-level, interpreted programming language primarily used to create dynamic and interactive web content. It runs in browsers, on servers (via Node.js), and in various environments, making it one of the most versatile languages in modern development.

    It follows the ECMAScript specification, supporting features like variables, functions, objects, classes, modules, and asynchronous programming. JavaScript is event-driven, prototype-based, and supports both functional and object-oriented paradigms.

    Basic Syntax Example

    // Variable declaration
    let name = "Alice";

    // Function definition
    function greet(user) {
    console.log(`Hello, ${user}!`);
    }

    // Conditional logic
    if (name) {
    greet(name);
    } else {
    console.log("No name provided.");
    }
    Copied!

    This snippet demonstrates variables, functions, and conditional statements—core building blocks of JavaScript.

    Key Features

    Feedback
  2. Mozilla Developer
    https://developer.mozilla.org › en-US › docs › Web › JavaScript › Guide

    JavaScript Guide - JavaScript | MDN - MDN Web Docs

    The JavaScript Guide shows you how to use JavaScript and gives an overview of the language. If you need exhaustive information about a language feature, have a look at t…
    Introduction

    Overview: Introduction
    •About this guide
    •About JavaScript
    •JavaScript and Java
    •ECMAScript
    •Tools

    Grammar and types

    Overview: Grammar and types
    •Basic syntax & comments
    •Declarations
    •Variable scope
    •Variable hoisting
    •Data structures and types

    Control flow and error handling

    Overview: Control flow and error handling
    •if...else
    •switch
    •try/catch/throw

    Loops and iteration

    Overview: Loops and iteration
    •for
    •while
    •do...while
    •continue
    •break

  3. W3School
    https://www.w3schools.com › Js

    JavaScript Tutorial - W3Schools

    JavaScript is easy to learn. This tutorial covers everything from basic JavaScript up to the latest 2025 version. Start learning JavaScript now » With our Try it Yourself …

  4. The Modern JavaScript Tutorial
    https://javascript.info

    The Modern JavaScript Tutorial

    2 days ago · Modern JavaScript Tutorial: simple, but detailed explanations with examples and tasks, including: closures, document and events, object oriented …

  5. JavaScript Tutorial
    https://www.javascripttutorial.net

    JavaScript Tutorial

    JavaScript Tutorial provides you with many practical tutorials that help you learn JavaScript from scratch quickly and effectively.

  6. GeeksForGeeks
    https://www.geeksforgeeks.org › javascript

    JavaScript Tutorial - GeeksforGeeks

    Mar 13, 2026 · The javaScript Coding Practice Problems page offers exercises for all skill levels, covering basic Numbers, String to advanced structures like Stack, …

  7. JavaScript.com
    https://www.javascript.com

    Learn JavaScript Online - Courses for Beginners - javascript.com

    You will find resources and examples for JavaScript beginners as well as support for JavaScript experts. Learn JavaScript or free with our easy to use input output machine.

  8. javascripthelp.org
    https://www.javascripthelp.org

    JavaScript Help

    The best way to learn JavaScript. Quality tutorials, 100% free. No signup or personal information required! This YouTube channel is packed with awesome videos for coders! Tons of videos teaching …

  9. Codecademy
    https://www.codecademy.com › catalog › language › javascript

    JavaScript Courses & Tutorials | Codecademy

    Supercharge your skills with Codecademy's JavaScript courses. From interactive projects to real-world coding, master JS today for a brighter tomorrow!

  10. javascript-tutorial.com
    http://javascript-tutorial.com

    Start - The complete JavaScript Tutorial

    Hello and welcome to this JavaScript tutorial, primarily intended for new users of this exciting and popular programming language. More advanced users might learn a thing or two as well, by reading …

  11. Mozilla Developer
    https://developer.mozilla.org › en-US › docs › Web › JavaScript

    JavaScript - MDN Web Docs

    Oct 2, 2025 · The object-oriented nature of JavaScript is important to understand if you want to go further with your knowledge of the language and write more efficient code, therefore we've provided …

    • Codecademy
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      https://preply.com › Language › Classes
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