There’s been times when building apps with Turbolinks that I’ve needed to tap into Rails UJS to be able to perform an action (e.g submit a form). As an example, if you want to submit a rails form with JS you need to use Rails.fire(...) or Rails.handleRemote(...)and there’s no reference to that anyw…

I second this. I’ve recently tried to migrate from jquery-ujs to @rails/ujs, and I noticed that the handleRemote() function which we were using changed its signature (it doesn’t accept the element anymore). I wanted to read on its documentation to figure out the correct way to call it, only to find…

+1 for this too. Better documentation would be so much better than relying on SO posts that work but leave you unsure if you’re doing things the “Rails Way”.

I agree. I also think the @rails/ujs interaction with Webpacker just to get it running isn’t very well documented.

Second this! Webpacker + UJS setup was a pain for me, especially since I had been able to take so much from UJS for granted before.

What’s the status on this? Where would be an appropriate place to document these methods? I’d be more than happy to draft some documentation with the assistance of a more-experienced developer. There’s been multiple times I’ve only learned that these methods exist because of watching third-party edu…

Hey @Betsy_Haibel ! It looks like that Javascript thread is unfortunately inaccurately named, and the guide being drafted is exclusively for Webpacker. Here’s a comment in a PR I opened addressing the topic. Should rails-ujs be included in this documentation? …

Hi, I commented in the GitHub issue, but I’m completely open to people starting other documents, eventually we’ll need to make this a PR to Rails itself, but one step at a time.

One thing to keep in mind here is that Rails UJS is on its way out and will probably be supplanted by Turbolinks 6.

It seems it is @Betsy_Haibel . However we might have apps in the community which will not upgrade anytime soon to TL6 or that may not even be able to (we’ll need to wait and see how different TL6 is to the current implementation of TL + UJS). IMO there’s value to documenting this regardless of the n…

Rails UJS documentation

A May Of WTFs

Betsy_Haibel (Betsy Haibel) May 29, 2020, 2:52pm 7

@jacobdaddario you might get some idea of status from JavaScript Documentation Coordination.

Topic		Replies	Views
UJS in Rails 3 Beta rubyonrails-talk	10	273	February 25, 2010
Where did UJS go? UJS vs. RJS rubyonrails-talk	12	326	December 28, 2006
How to update the UI with UJS form submissions? rubyonrails-core	4	781	July 13, 2020
UJS guides somewhere? rubyonrails-talk	7	219	May 25, 2011
Simple UJS Fields rubyonrails-talk	1	129	April 19, 2011

Rails UJS documentation

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