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Free Course · 119 Lessons

Free JavaScript Course

Master the programming language of the web, from basic syntax to advanced asynchronous patterns and DOM manipulation.

Course Curriculum

  1. 01The Brain of the Web
  2. 02The Digital Timeline
  3. 03The Engine Protocol
  4. 04First Steps & Setup
  5. 05Grammar & Rules
  6. 06The Annotation Lab
  7. 07Storage & Identity
  8. 08Computation Gates
  9. 09Architectural Flow
  10. 10Branching logic
  11. 11Iteration Cycles
  12. 12The Collection Intro
  13. 13Collection Matrix
  14. 14Array Methods
  15. 15Object Architecture
  16. 16Function Protocols
  17. 17DOM Engineering
  18. 18Event Systems
  19. 19Persistence Lab
  20. 20Async Foundation
  21. 21Promise Lifecycle
  22. 22Async/Await Logic
  23. 23Fetch API Bridge
  24. 24Browser Object Model
  25. 25Closure Backpack
  26. 26Class Blueprints
  27. 27ES Module System
  28. 28JSON Data Bridge
  29. 29Temporal Logic
  30. 30Quality Control
  31. 31Resiliency Protocol
  32. 32Scoping Discipline
  33. 33Destructuring Patterns
  34. 34The Spread Operator
  35. 35Rest Parameters
  36. 36Template Literals
  37. 37Optional Chaining
  38. 38Nullish Coalescing
  39. 39Logical Assignment
  40. 40Default Parameters
  41. 41Enhanced Object Literals
  42. 42Higher Order Functions
  43. 43Pure Functions
  44. 44Function Composition
  45. 45Currying (Intro)
  46. 46Memoization
  47. 47Functional Programming Basics
  48. 48Advanced Object Destructuring
  49. 49Object.freeze()
  50. 50Object.seal()
  51. 51Object.assign()
  52. 52Deep Copy vs Shallow Copy
  53. 53structuredClone()
  54. 54reduce() Deep Dive
  55. 55The some() Method
  56. 56The every() Method
  57. 57The find() Method
  58. 58The findIndex() Method
  59. 59The flat() Method
  60. 60The flatMap() Method
  61. 61Sorting with sort()
  62. 62Immutable Sorting: toSorted()
  63. 63Immutable Reversing: toReversed()
  64. 64The Map Collection
  65. 65The Set Collection
  66. 66WeakMap
  67. 67WeakSet
  68. 68Promise.all() Deep Dive
  69. 69Promise.allSettled() Deep Dive
  70. 70Promise.race() Deep Dive
  71. 71Promise.any() Deep Dive
  72. 72AbortController
  73. 73Fetch Cancellation Patterns
  74. 74Async Iterators
  75. 75The Clipboard API
  76. 76The URL API
  77. 77The History API
  78. 78Web Storage Best Practices
  79. 79The Intersection Observer
  80. 80The Resize Observer
  81. 81The Mutation Observer
  82. 82Introduction to Web Workers
  83. 83Custom Errors
  84. 84Built-in Error Types
  85. 85Global Error Handling
  86. 86Promise Error Handling Patterns
  87. 87Reading Stack Traces
  88. 88Debounce
  89. 89Throttle
  90. 90requestAnimationFrame
  91. 91The Event Loop: Microtask/Macrotask Ordering
  92. 92Microtasks
  93. 93Macrotasks
  94. 94Memory Leaks
  95. 95Garbage Collection
  96. 96The Module Pattern
  97. 97The Factory Pattern
  98. 98The Singleton Pattern
  99. 99The Observer Pattern
  100. 100Publish / Subscribe
  101. 101XSS Basics
  102. 102Safe DOM Manipulation
  103. 103HTML Sanitization
  104. 104Content Security Policy Basics
  105. 105Secure Fetch Requests
  106. 106Advanced Breakpoints
  107. 107The Call Stack in Depth
  108. 108The Performance Profiler
  109. 109The Memory Profiler
  110. 110Network Debugging
  111. 111Source Maps in Production
  112. 112Generating JavaScript with Claude
  113. 113Generating JavaScript with ChatGPT
  114. 114Refactoring JavaScript with AI
  115. 115AI Code Review
  116. 116AI-Assisted Debugging
  117. 117AI-Assisted Performance Optimization
  118. 118AI-Assisted Documentation
  119. 119AI-Assisted Test Generation

Frequently Asked Questions

Is this JavaScript course free?

Yes. All 119 lessons are free, interactive, and require no signup to start.

Do I need prior experience?

Master the programming language of the web, from basic syntax to advanced asynchronous patterns and DOM manipulation.

How is this course structured?

119 interactive lessons with live code editors, moving from the fundamentals to advanced, real-world topics.