Hi Everyone I’ve heard about Elm for a long time, particularly from @jxxcarlson . I’ve now starting learning and coding so that I can write an app. And I’ve a beginners question. In most Elm apps, the update method is quite large, with a large case statement based on the msg sent to update. That …

[image] Maldus512: I get it, but this is a limitation of the debugging tool. In theory it wouldn’t be hard to tie some distinguishing information to named functions Well said. I have some ideas along these lines. When they are better thought out I’ll create a Request Feedback topic. In the me…

Hi @jfine2358 welcome! You can definitely put functions in your messages but there are several things that you have to be careful with when doing that. First you cannot see messages that flow through your app. If you click on the DEBUG tab after clicking a bit on buttons of that ellie you give, you…

This is a very interesting approach and the closest thing to a solution to the issue of bloated update functions I’ve witnessed until now!

I like that the Elm community considers the forces involved when it makes a design decision. Functions or messages in update depends on the forces. When I posted, I wasn’t aware of debugging, which is very important when it is needed. Thank you @G4BB3R . I intend to build my app starting with the ve…

I would advise against going the route of functions in messages. There used to be a port of material design widgets that used this pattern in order to manage some state automation. Evan (Elm’s creator) spoke against this approach and I would not be surprised at all to discover that in a future vers…

@pdamoc : Thank you for your advice. I’m reminded that experience is knowledge you get just after you needed it. Is elm-ui-widgets 3.0.0 the port you mentioned? Do you have a link for @evancz speaking against the function instead of message approach?

you might find this useful [image] Messages purpose Learn Why does TEA use separate msg type and uptate function? Why not just pass model -> (model, Cmd) functions to Html

[image] jfine2358: Do you have a link for @evancz speaking against the function instead of message approach? Unfortunately, I don’t seem to find that discussion anymore. I found a reference from Richard here where he mentions that Evan has said “it’s not a good idea to put functions in Msg”. …

Something that is nice about Msg is that since Msg is a defined type, it is basically finite and fully described. Like in… type Msg = A | B | C You can just see that it only comes in the varieties A, B, and C. Anyone can wonder “What are the kinds of Msg in this module? I forgot…” and then check t…

Thank you. The message from Richard’s reply extremely helpful, and indeed the whole thread. I think this statement sums up the issue very well. Personally I am beyond excited to use the 0.18 dev tools and have no interest in sacrificing that debugging feature (or others) in pursuit of the local ma…

This is a long post, but it provides a summary to the thread so far. So please read on. Thank you @Chadtech , particularly for your description of your work experience. I don’t know what you mean by stringly typed code, but it sounds bad. Certainly, substandard code in a project can obstruct and re…

Why not use: update fn state = fn state

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DullBananas March 3, 2021, 6:08pm 8

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Why not use: update fn state = fn state

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