Helpers for working with Float
values
Round a Float
to a given number of decimal places
pi
|> roundTo 2
--> 3.14
pi
|> roundTo 0
--> 3
1234
|> roundTo -2
--> 1200
module Toolkit.Float exposing
( roundTo )
{-|
Helpers for working with `Float` values
# Rounding
@docs roundTo
-}
{-| Round a `Float` to a given number of decimal places
pi
|> roundTo 2
--> 3.14
pi
|> roundTo 0
--> 3
1234
|> roundTo -2
--> 1200
-}
roundTo : Int -> Float -> Float
roundTo place number =
let
multiplier =
place
|> (^) 10
|> toFloat
in
number
|> (*) multiplier
|> round
|> toFloat
|> flip (/) multiplier