Assign a value in elm

Question

This is a really noob question, i'm sorry but my search on the internet can't find the answer. I have the following code:

-- MODEL

type alias Model = Int

model : Model
model =
  0


-- UPDATE

type Msg = Increment | Decrement | Reset

update : Msg -> Model -> Model
update msg model =
  case msg of
    Increment ->
      model + 1

    Decrement ->
      model - 1
    Reset ->
      model = 0

I am trying to implement the reset that sets the model value to 0. But i'm getting a compilation error:

The = operator is reserved for defining variables. Maybe you want == instead? Or maybe you are defining a variable, but there is whitespace before it?

Please help!

Yes I did, thank you! I didn't realise i was already in an equals for the model value. — Mr Giggles, Nov 28 '17 at 09:59

score 29 · Accepted Answer · answered Nov 28 '17 at 10:01

29

You only need to write the model's new value there. In this case, that'll be just 0:

Reset ->
  0

answered Nov 28 '17 at 10:01

Dogbert

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Assign a value in elm

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