[elm-discuss] Starting Elm, need help understanding -> syntax
Hi, I am having trouble understanding the -> syntax in elm. For example if we have the function: plusTwo x = x + 2 it's type definition will be as follows: : number -> number this is pretty straight forward however, if we have the function add x y = x + y its type definition is: : number -> number -> number why is it not number number -> number? What does -> denote exactly. Thanks in advance. -- You received this message because you are subscribed to the Google Groups "Elm Discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to elm-discuss+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [elm-discuss] Starting Elm, need help understanding -> syntax
Yep, that makes perfect sense. I did not realize that in Elm all functions take exactly one argument and return a result -- You received this message because you are subscribed to the Google Groups "Elm Discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to elm-discuss+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[elm-discuss] New to Elm, need help understanding type Node msg = Node in source code
Hi, I'm trying to understand how the Html module works. I see many methods with return type Html msg, which is a type alias for Node msg. After tracking down the source code and reading into it, I am confused by the following line: type Node msg = Node what is the purpose of the above line? Furthermore, I don't understand the use of the type parameter msg. For example I can see that type Property msg = Property and property : String -> Json.Value -> Property msg property = Native.VirtualDom.property when looking into the implementation of VirtualDom.property, I see function property(key, value) { return { key: key, value: value }; } Does that mean the return value of calling: property "className" (Json.string "myClass") is of type Property msg where msg = { key: "className", value: "myClass" }? does the property function actually use a type constructor and return the type? Thanks in advance. -- You received this message because you are subscribed to the Google Groups "Elm Discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to elm-discuss+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.