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Reason React 0.8

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Re: Reason React 0.8

#11

Post by [deleted] »

parhamn wrote: post #3
thegreatpeter wrote: post #2

The long awaited 0.8.0 release from Reason React is out of beta! This includes a lot of the niceties of writing React but in a very fast, type safe language. If this is your first time hearing about Reason, watch a video from its creator (Jordan Walke, creator of React) to learn more: https://www.youtube.com/watch?v=5fG_lyNuEAw&t=11s Fun facts about Reason: - exports TypeScript! If you have a TS project and looking f…

Awesome! Question, say you use TypeScript already, what are the biggest tangible gains in terms of safety (measured by fewer bugs in production) you think can be achieved by using Reason?

[deleted]

Re: Reason React 0.8

#12

Post by bgorman »

_bxg1 wrote: post #7
bgorman wrote: post #6

Earlier quoted context omitted.

With ReasonML and other ML languages the type system is advanced enough to make many error conditions unrepresentable in the type system, and therefore the bugs move from runtime to compile time. Typescript has slowly been making its type system more powerful and exhaustive, but ultimately the fact that it is a superset of javascript will always keep it from having the compile time safety you can get in other languag…

What's the editor support like? TypeScript has industry-leading editor integration with insanely fast response times. I'm always wary of new languages for this reason; I've been burned before by Facebook's own Flow type system.

As far as editor support, I have used reason-language-server (https://github.com/jaredly/reason-language-server) with Emacs (current), Vim and VSCode (provided through reason-vscode plugin).

I used to use IntelliJ, and there was a solid plugin for that as well.

ReasonML's compiler is way faster than Typescript's.

Re: Reason React 0.8

#15

Post by _bxg1 »

bgorman wrote: post #12
_bxg1 wrote: post #7

Earlier quoted context omitted.

What's the editor support like? TypeScript has industry-leading editor integration with insanely fast response times. I'm always wary of new languages for this reason; I've been burned before by Facebook's own Flow type system.

As far as editor support, I have used reason-language-server ( https://github.com/jaredly/reason-language-server ) with Emacs (current), Vim and VSCode (provided through reason-vscode plugin). I used to use IntelliJ, and there was a solid plugin for that as well. ReasonML's compiler is way faster than Typescript's.

There's a difference between "the compiler is faster when run at the CLI" and "the language server is faster". A good language server remains responsive by doing quick, partial compilations on just the section that changed. A bad language server just wraps the standard compiler and re-runs the whole thing when a file is saved. The latter will eat up CPU/RAM and make for a frustrating dev experience, no matter how relatively-fast the base compilation time is.

Re: Reason React 0.8

#16

Post by tsnobip »

cosmosocean wrote: post #13

Hey there, is there a `styled-components` library for Reason? I'm really considering ReasonML for my app, however I'm not a big fan of the styling in reason react.

I guess this lib would be the closest alternative in a safe statically typed way : https://github.com/davesnx/styled-ppx There's also a nice lib for tailwind : https://github.com/dylanirlbeck/tailwind-ppx

Re: Reason React 0.8

#17

Post by wwewe »

cosmosocean wrote: post #13

Hey there, is there a `styled-components` library for Reason? I'm really considering ReasonML for my app, however I'm not a big fan of the styling in reason react.

The approach I've been taking is to use ReasonML to model the domain of my application as well as high level components. ReasonML code remains unaware of the styling of the "lower-level" components for the most part, which I write in typescript with styled-components or emotion.

Re: Reason React 0.8

#18

Post by wwewe »

bgorman wrote: post #8

ReasonML is awesome! I personally preferred the "reducer" state modeling mechanism from ReasonReact 0.6, but you can still use it as a library with https://github.com/bloodyowl/reason-react-update

I ended up just using redux with react-redux. I just wrote my own bindings (does not cover the entire api surface but the essentials): https://gist.github.com/melbourne2991/b3093187505f2ee9e517bb...

You get a lot of optimizations for free with react-redux. Given reason-react now supports hooks you can also just use `useReducer` but this lacks some optimizations.

Re: Reason React 0.8

#19

Post by yawaramin »

Matthias247 wrote: post #4
thegreatpeter wrote: post #2

The long awaited 0.8.0 release from Reason React is out of beta! This includes a lot of the niceties of writing React but in a very fast, type safe language. If this is your first time hearing about Reason, watch a video from its creator (Jordan Walke, creator of React) to learn more: https://www.youtube.com/watch?v=5fG_lyNuEAw&t=11s Fun facts about Reason: - exports TypeScript! If you have a TS project and looking f…

> - It powers all of Messenger.com. The team put out a case study where they went from ~10 bugs a week to less than 10 a quarter by switching to Reason Did they move from Typescript or Javascript?

More details here: https://reasonml.org/blog/messenger-50-reason

Re: Reason React 0.8

#20

Post by yawaramin »

dmit wrote: post #5
thegreatpeter wrote: post #2

The long awaited 0.8.0 release from Reason React is out of beta! This includes a lot of the niceties of writing React but in a very fast, type safe language. If this is your first time hearing about Reason, watch a video from its creator (Jordan Walke, creator of React) to learn more: https://www.youtube.com/watch?v=5fG_lyNuEAw&t=11s Fun facts about Reason: - exports TypeScript! If you have a TS project and looking f…

Congratulations on the release! I have a couple questions for you (and any other contributors!) about the project, but I don't know how to phrase them without coming off as combative. Please accept the following as genuine curiosity rather than malice. 1) You called the 0.8 release "huge" in the release notes, even though it adds 11 new functions, removes 2, and updates 2 compared to 0.7, released a year prior. Is th…

1) You can see a complete list of changes here https://github.com/reasonml/reason-react/blob/a70d9e6b51ed0a... . We consider it a huge release partly because it adds some long-awaited bindings, partly because of the documentation improvements, and partly because of how community-driven the release was.

2) BuckleScript's creator works for Facebook and has both a specific focus and a long-term vision for the project, more details here: https://www.youtube.com/watch?v=iWEQjvGGiTA . He also regularly blogs about ongoing improvements: https://reasonml.org/blog . Facebook Web Messenger and other products are heavily reliant on BuckleScript. I would consider that to be production-ready.

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