Max and min in an array of Float in Swift

Question

According to this answer, to obtain the maximum of an array we can do:

let nums = [1, 6, 3, 9, 4, 6];
let numMax = nums.reduce(Int.min, { max($0, $1) })
         


        

Answer 1

Swift 4 has a .max() method for Array.

Example:

let floats: Array = [2.45, 7.21, 1.35, 10.22, 2.45, 3]
let max = floats.max()

Note: max() returns an optional so there's a chance it could come back nil.