Removing objects from an array based on another array

Question

I have two arrays like this:

var arrayA = [\"Mike\", \"James\", \"Stacey\", \"Steve\"]
var arrayB = [\"Steve\", \"Gemma\", \"James\", \"Lucy\"]

Answer 1

I agree with Antonio's answer, however for small array subtractions you can also use a filter closure like this:

let res = arrayA.filter { !contains(arrayB, $0) }