iOS swift remove elements of an array from another array

Question

I have two arrays

var array1 = new Array [\"a\", \"b\", \"c\", \"d\", \"e\"]
var array2 = new Array [\"a\", \"c\", \"d\"]

I want to remove

Answer 1

@Antonio's solution is more performant, but this preserves ordering, if that's important:

var array1 = ["a", "b", "c", "d", "e"]
let array2 = ["a", "c", "d"]
array1 = array1.filter { !array2.contains($0) }