Compare each element in two arrays Swift

Question

I have two arrays of strings. for example:

let arrayFirst: [String] = ["A", "A", "A", "A", "A"]
let arraySecond: [String] = ["A", "C", "A", "B", "A"]

I need to compare this two arrays each element in array and return for every sequence bool state. For example here will be answer:

 let resultArray: [Bool] = [true, false, true, false, true]

how to do it better?

What should the result be if the arrays are of different length? Maybe you could add your own attempt at solving this to clarify what you want to do and also since this is expected when posting a question. — Joakim Danielson
– Joakim Danielson, Commented Mar 22, 2022 at 10:13

koropok · Accepted Answer · 2022-03-22 10:01:44Z

3

You can consider using the zip function.

let resultArray = zip(arrayFirst, arraySecond).map {
    return $0.0 == $0.1
}

This will work even you have arrays of different length as zip will ignore the additional elements of the longer array.

answered Mar 22, 2022 at 10:01

koropok

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2 Comments

Even .map(==) should work.

Yes, but i need to handle false values and true values..