Javascript Challenges

Tomás Corral

A book to challenge your knowledge about the most obscure parts of Javascript. Learn with us and don't be affraid again of Javascript.


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Great collection of javascript exercises!
A book I absolutely recommend! It's great starting point to familiarize yourself with some obscure portions of JavaScript. And become one step closer to mastering the dark arts of this awesome language.

Javascript Challenges

This book will challenge you to learn and understand the most obscure and tricky parts of Javascript.

In order to perform the best that you can I recommend you not to cheat taking a look at solutions before you suggest one.

This book can be used as a learning resource for Javascript training if you want, but please send a tweet recommending us to other people.

I hope you enjoy this book because this is the purpose of this book.

Feedback is welcome.

Thanks a lot to GITBOOK team for it's amazing project to write your own books using Github repos.


Table of Contents:

  • 0. Intro
  • 0.1. Self Invoking Functions
  • 0.2. Floats Operations Imprecision
  • 0.3. Hoisting and Conditionals
  • 0.4. Checking Properties
  • 0.5. Closure and Objects
  • 0.6. Conditionals and Functions
  • 0.7. Delete
  • 0.8. Detect Internet Explorer
  • 0.9. Don't judge a book by its cover
  • 0.10. Encapsulate collection
  • 0.11. Even or Odd
  • 0.12. Exit nested loop
  • 0.13. #1 Fooling around boolean
  • 0.14. #2 Fooling around boolean
  • 0.15. Ghost Array
  • 0.16. Input Search
  • 0.17. Invaluable
  • 0.18. JSON
  • 0.19. Nested Scopes
  • 0.20. Now you see me...
  • 0.21. Frozen
  • 0.22. Point
  • 0.23. Running Man
  • 0.24. Scope
  • 0.25. Spartacus
  • 0.26. Terminator
  • 0.27. Timers
  • 0.28. Undefined Values in Arrays
  • 0.29. Array Map and ParseInt
  • 0.30. Variable Scope

Tomás Corral

Barcelona