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

Just use the first array element as the initial value:

let numMax = floats.reduce(floats[0], { max($0, $1) })

but of course you need to check that the floats array is not empty before doing it.