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JavaScript•JavaScript Foundations

JavaScript Tutorial

Learn JavaScript

JavaScript is easy to learn.

This tutorial covers everything from basic JavaScript up to the latest 2026 version.

Why Study JavaScript?

JavaScript is one of the 3 languages all web developers must learn:

HTML to define the content of web pages
CSS to specify the layout of web pages
JavaScript to program the behavior of web pages

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JavaScript Syntax

This chapter

51

Lessons

194m

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1. JavaScript Tutorial 2. JavaScript Syntax 3. JavaScript Operators 4. JavaScript if 5. JavaScript Loops 6. JavaScript Functions 7. JavaScript Scope 8. JavaScript Data Types 9. JavaScript Style Guide 10. JavaScript Introduction 11. JavaScript Statements 12. JavaScript Arithmetic 13. JavaScript else 14. JavaScript For Loop 15. JavaScript Functions 16. JavaScript Code Blocks 17. JavaScript Primitives 18. JavaScript Best Practices 19. JavaScript Where To 20. JavaScript Comments 21. JavaScript Assignment 22. The JavaScript Ternary Operator 23. JavaScript While Loops 24. Invoking JavaScript Functions 25. JavaScript Hoisting 26. JavaScript Built-In Objects 27. JavaScript Common Mistakes 28. JavaScript Output 29. JavaScript Variables 30. JavaScript Comparison 31. JavaScript Switch Statement 32. JavaScript Break 33. JavaScript Function Parameters 34. JavaScript Use Strict 35. JavaScript typeof 36. JavaScript Performance 37. JavaScript Let 38. JavaScript Conditionals 39. JavaScript Booleans 40. JavaScript Continue 41. JavaScript Function Return 42. JavaScript toString()43. JavaScript Const 44. JavaScript Logical Operators 45. JavaScript Control Flow 46. JavaScript Function Arguments 47. JavaScript Type Conversion 48. JavaScript Datatypes 49. JavaScript Function Expressions 50. JavaScript Destructuring 51. JavaScript Arrow Functions

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Learn JavaScript Why Study JavaScript?