Scriptly

JavaScript

JavaScript for Beginners — Complete Free Tutorial

Learn JavaScript from zero with 28 original, hands-on chapters: variables, functions, arrays, objects, the DOM, events, closures, async/await, Fetch, modules and classes. Every chapter includes clean code examples, expected output, common mistakes and a practice checklist.

This complete JavaScript course takes you from your first console.log() to production-quality asynchronous code. Each chapter is written for absolute beginners: plain-language explanations, copy-paste code examples with expected output, real-world recipes like event delegation and API calls, and internal links to related chapters. Follow the chapters in order or jump to any topic — by the end you will be able to build interactive, data-driven web pages with hand-written JavaScript and understand what every framework is doing under the hood.

Chapters

  1. 1. Introduction to JavaScript Read →
  2. 2. Adding JavaScript to HTML Read →
  3. 3. Variables: let, const & var Read →
  4. 4. Data Types & Type Coercion Read →
  5. 5. Operators & Expressions Read →
  6. 6. Conditionals & Control Flow Read →
  7. 7. Loops & Iteration Read →
  8. 8. Functions in JavaScript Read →
  9. 9. Arrays & Array Methods Read →
  10. 10. Objects & JSON Read →
  11. 11. Strings & Template Literals Read →
  12. 12. Scope, Hoisting & Closures Read →
  13. 13. The this Keyword & Binding Read →
  14. 14. The DOM: Selecting Elements Read →
  15. 15. DOM Manipulation: Creating, Updating & Removing Elements Read →
  16. 16. Events: Delegation, Bubbling & Listeners Read →
  17. 17. Forms & User Input Read →
  18. 18. Error Handling & Debugging Read →
  19. 19. Asynchronous JavaScript & the Event Loop Read →
  20. 20. Promises: Handling Async Operations Read →
  21. 21. Async/Await Read →
  22. 22. Fetch API & Working with APIs Read →
  23. 23. JavaScript Modules (ES Modules) Read →
  24. 24. Classes & OOP in JavaScript Read →
  25. 25. Browser Storage & Web APIs Read →
  26. 26. Regular Expressions in JavaScript Read →
  27. 27. Dates, Math & Numbers Read →
  28. 28. JavaScript Best Practices & Where to Go Next Read →