Op maandag 5 december 2016 21:00:35 UTC+1 schreef Frankie Sardo:
>
> Why does the update syntax accept just a new value instead of accepting a
> function that updates (or creates) the new value?
>
Don't know about Clojure, but Elm likes you to be explicit and consistent
about functions, meaning: if the function requires an argument, then you
should provide an argument if you want to use the output of the function
instead of the function itself.
So, you could use the functions you describe, as long as you also pass the
argument:
{ model
| val1 = increase model.val1
, val2 = always42 model.val2
}
You can find a working example here <https://runelm.io/c/jzw>
Hope this helps
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