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mozilla.org
https://developer.mozilla.org/en-US/docs/Web/JavaS…
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 the JavaScript reference.
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w3schools.com
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 editor, you can edit the source code and view the result. We recommend reading this tutorial, in the sequence listed in the menu.
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javascript.info
https://javascript.info/
The Modern JavaScript Tutorial
Modern JavaScript Tutorial: simple, but detailed explanations with examples and tasks, including: closures, document and events, object oriented programming and more.
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freecodecamp.org
https://www.freecodecamp.org/news/the-complete-jav…
The JavaScript Beginner's Handbook - freeCodeCamp.org
Update: You can now get a PDF and ePub version of this JavaScript Beginner's Handbook. Created in 1995, JavaScript has gone a very long way since its humble beginnings.
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devdocs.io
https://devdocs.io/javascript/
JavaScript documentation — DevDocs
If you are new to JavaScript, start with the guide. Once you have a firm grasp of the fundamentals, you can use the reference to get more details on individual objects and language constructs.
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javascripttutorial.net
https://www.javascripttutorial.net/
JavaScript Tutorial
JavaScript Tutorial provides you with many practical tutorials that help you learn JavaScript from scratch quickly and effectively.
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geeksforgeeks.org
https://www.geeksforgeeks.org/javascript/javascrip…
JavaScript Complete Guide - A to Z JavaScript Concepts
Event-Driven: JavaScript is designed to handle events (like clicks or key presses) in web applications. Let's see, all essential JavaScript concepts from A to Z, helping you build a solid understanding of the language.