swift - 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"]

As you can see, James and Steve match and I want to be able to remove them from arrayA. How would I write this?

question from:https://stackoverflow.com/questions/29612968/removing-objects-from-an-array-based-on-another-array

Answer 1

Like this:

var arrayA = ["Mike", "James", "Stacey", "Steve"]
var arrayB = ["Steve", "Gemma", "James", "Lucy"]
for word in arrayB {
    if let ix = find(arrayA, word) {
        arrayA.removeAtIndex(ix)
    }
}
// now arrayA is ["Mike", "Stacey"]