Life & fun · alternatives · 2026

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Interactive JavaScript tutorial on closures and continuations launched in 2011; newer entries below may have overtaken it.

1. 1IC
   Interactive Course on JavaScript Closures▲7

   2021 · slip.so · its alternatives →

2. 2
   Eloquent Javascript▲20

   A modern introduction to Javascript

   2014 · eloquentjavascript.net · its alternatives →

3. 3
   JavaScript Air: For the Beginners▲62

   Stories and wisdom from the panel, for beginner programmers

   2016 · javascriptair.com · its alternatives →

4. 4
   This Developing Story - 33: Step by step refactoring▲54

   A review of an interview on refactoring JavaScript Framework

   2015 · developingstory.netlify.com · its alternatives →

5. 5
   Purely Functional Data Structures▲61

   A guide to functional programming

   2016 · amazon.com · its alternatives →

6. 6
   NotebookJS▲109

   Scientific computation for JavaScript

   2016 · datazar.com · its alternatives →

7. 7LJ
   Learn Javascript by interactive coding▲5

   2012 · learnjs.info · its alternatives →

8. 8
   Code Podcast 3: Concurrency – Event Loop & Coroutines▲54

   Concurrency in UIKits, browsers and web servers

   2016 · soundcloud.com · its alternatives →

9. 9PM
   Practical Modern JavaScript▲7

   2017 · ponyfoo.com · its alternatives →

10. 10OP
    Object Playground - The definitive guide to object-oriented JavaScript▲5

    2013 · objectplayground.com · its alternatives →

11. 11PO
    Picket – Object orientated JavaScript - Type hinting, interfaces, much more▲5

    2015 · picketjs.com · its alternatives →

12. 12TI
    TryCode.io: A Simple, Interactive Coding Tutorial for Beginners▲9

    2015 · trycode.io · its alternatives →

13. 13CA
    Clause: an expressive JavaScript contract system, inspired by clojure.spec▲8

    2017 · clause.js.org · its alternatives →

14. 14
    Nullstack – A framework for full stack JavaScript components▲7

    2023 · nullstack.app · its alternatives →

15. 15
    JsonTree, a tool for turning JSON data into a collapsible html tree▲9

    A lightweight vanilla Javascript micro-library for making collapsible trees with JSON - MaxLeiter/jsonTree

    2016 · github.com · its alternatives →

16. 16JM
    Jindo – minimalist reactive backend for JavaScript applications▲7

    2016 · jindo.io · its alternatives →

17. 17
    JavaScript and JQuery▲6

    Interactive Front-End Web Development

    2016 · amazon.com · its alternatives →

18. 18RE
    Regular Expressions in JavaScript – Interactive Course▲6

    2021 · slip.so · its alternatives →

19. 19ET
    engine262 - the self-hosted JavaScript engine▲5

    2019 · engine262.js.org · its alternatives →

20. 20AP
    AllJS – Popular JavaScript libraries ready for tinkering▲6

    2015 · alljs.net · its alternatives →

21. 21
    Natto – a canvas for writing and manipulating JavaScript▲5

    2021 · natto.dev · its alternatives →

22. 22
    Lambda Lessons▲6

    Pattern-matching, first-class functions, and more in Haskell

    2014 · stevekrouse.github.io · its alternatives →

23. 23XR
    Xcell – Reactive, spreadsheet-like calculations in JavaScript▲9

    2018 · tomazy.github.io · its alternatives →

24. 24TA
    tut, an open platform for programming tutorials▲8

    2013 · king-tutorial.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →