How do I convert a Float to an Int in Elm?

Question

If I have a Float value and I want a Int to use elsewhere how do I make that conversion?

Answer 1

Elm makes it very easy to convert between values!

(Note: Because Elm is functional and all variables are immutable, the value is not actually converted, rather a new equivalent value is created.)

All you have to do is choose what you want to do with the decimals!

Round do the nearest integer with round

1.5 |> round -- 2 : Int

Round up with ceiling

1.5 |> ceiling -- 2 : Int

Round down with floor

1.5 |> floor -- 1 : Int

Ignore the deimals with truncate

1.5 |> truncate -- 1 : Int

Converting back is just as easy using toFloat

1 |> toFloat -- 1.0 : Float