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choojs
choo
JavaScript2016–2025
choojs / choo

choo

:steam_locomotive::train: - sturdy 4kb frontend framework

19Distinct people
26Mentions
1Explicit recommenders
6.8KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

:steam_locomotive::train: - sturdy 4kb frontend framework

GitHub

Where it is used

No documented product use was verified in the last source check.

What people are saying

It was cool seeing a demo at the end made using Choo[1]. Choo is my favorite in the current sea of react clones. I like it because its tiny (4k vs react's ~200k). Choo supports…

josephg used a recommendation phrase. One indexed comment matches. This is a phrase match, not a verdict.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:03:16 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year26 dated mentions

Observed mentions: 2016-05-21 13:15:06 UTC to 2025-10-11 23:48:57 UTC.

0369122016-01-01 00:00:00 UTC to 2017-01-01 00:00:00 UTC (exclusive): 11 mentions; 7 submissions, 4 comments20162017-01-01 00:00:00 UTC to 2018-01-01 00:00:00 UTC (exclusive): 7 mentions; 0 submissions, 7 comments2018-01-01 00:00:00 UTC to 2019-01-01 00:00:00 UTC (exclusive): 3 mentions; 0 submissions, 3 comments2019-01-01 00:00:00 UTC to 2020-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 3 mentions; 0 submissions, 3 comments20202021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2025

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20162016-01-01 00:00:00 UTC2017-01-01 00:00:00 UTC1174
20172017-01-01 00:00:00 UTC2018-01-01 00:00:00 UTC707
20182018-01-01 00:00:00 UTC2019-01-01 00:00:00 UTC303
20192019-01-01 00:00:00 UTC2020-01-01 00:00:00 UTC101
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC303
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC000
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC000
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC000
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC000
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC101

What Hacker News says

26 sources
Try Choo (4kb ninja sword). I think the design really nails it: just enough architecture, tagged template literal rendering, functional DOM tree composition with an optional component system. I prefer to avoid stateful components in favor of pure rendering functions, as much as possible. Choo's renderer is based on morphdom, which is interesting because it diffs against the real DOM rather than maintaining a virtual one. I use monoapp, which is a fork of Choo allowing you to bring your own renderer (such as lit-html). https://github.com/choojs/choo https://github.com/jongacnik/monoapp
In The web as a GUI toolkit
I'm gonna go with a bit more unconventional advice: start small. React, Vue, Angular are massive projects with a ton of underlying libraries, patterns and concepts that you will be discouraged to learn initially. Start using a simple framework, reading the source code, maybe even writing your own to understand how everything works. Suggestions: https://github.com/hyperapp/hyperapp https://github.com/choojs/choo Also check out this redux + vanilla js exercise by a friend: http://ramonvictor.github.io/tic-tac-toe-js/ Learn ES6: https://egghead.io/courses/learn-es6-ecmascript-2015 Once you get a good grip of the language, and are comfortable writing code, you can jump into JSX, React, Vue, and later TypeScript. Enjoy!
In Ask HN: What you wish you'd known before getting into JavaScript?
josephg·May 30, 2017Recommendation phrase
It was cool seeing a demo at the end made using Choo[1]. Choo is my favorite in the current sea of react clones. I like it because its tiny (4k vs react's ~200k). Choo supports server-side rendering. And its made out of smaller modules which are all independently useful (DOM generator, diff engine and router). Instead of using JSX files, choo uses ES6 tagged template literals. As a result the code doesn't need a compilation step at all. But you can still actually compile the templates if you want for better performance + a smaller JS bundle in production. Its great stuff. I'm a huge fan. [1] https://github.com/yoshuawuyts/choo
In V8, Advanced JavaScript, and the Next Performance Frontier [video]
Yep. I did some swift development recently and while I absolutely loved the language I was struck with how much worse the uikit APIs are compared to react. There's nothing special about javascript the language. The nice thing about web development is that the really fast framework iteration cycles. And everyone complains about them, but as a result we have some fantastic APIs for UI development in javascript land now. (Eg, react.) What I want to see is someone port those lovely abstractions across to native languages. For example, a port of choo[1] to swift on top of uikit would be gloriously fast, efficient, small and easy to work with. [1] https://github.com/yoshuawuyts/choo
In VS Code uses 13% CPU when idle due to blinking cursor rendering

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