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Discussion on: #30daysofelm Day 26: Debug.log, Debug.toString and the REPL

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wolfadex profile image
Wolfgang Schuster •

In Elm, Debug.log has to be within a let block.

That's not accurate, though it is common. Debug.log has the type Debug.log : String -> a -> a which means it takes a String and anything and returns that last thing. This can be really handy with pipes as an example

myThing
    |> doSomething
    |> Debug.log "my modified thing"
    |> otherFunc
    |> Debug.log "after otherFunc change"
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This way you can log your thing between steps. Another example could be wanting to log the value being passed into a case .. of

case Debug.log "my value" someVal of
    ...
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Also kinda sad that this series is almost over!

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kristianpedersen profile image
Kristian Pedersen •

Ah, thanks! As always, your input is highly appreciated!

It does feel weird that the 30 days are almost done. Maybe 30 weeks next? :D

I'm happy though - I can easily spend 10-15 minutes re-writing a paragraph, so it will be nice to have more energy to focus on code and projects. :)

Writing is a great tool for learning, so I wouldn't be surprised if I make more posts.