Use same loop to iterate over multiple arrays subsequently?

Question

Not looking for zip(), as I have multiple arrays:

var cellphones = [IPhone(), Galaxy()]
var laptops = [Macbook(), Ideapad()]

And I want to iterate over them all in any order:

cellphones.forEach { device in
    var multiple = lines()
    ofCode()
    thatDontNeedToKnowIfPhoneOrLaptop(device)
}
laptops.forEach { device in
    var multiple = lines()
    ofCode()
    thatDontNeedToKnowIfPhoneOrLaptop(device)
 }

How would I do this without having to repeat the loop bodies?

What about creating a closure/func with the repeated code?

Larme
– Larme

2020-06-09 07:47:56 +00:00
Commented Jun 9, 2020 at 7:47 — Larme
– Larme, Commented Jun 9, 2020 at 7:47

Claudio · Accepted Answer · 2020-06-09 07:55:24Z

2

Assuming the objects on the array all implement the same protocol or inherit the same class I believe this would work:

let loop: ((DeviceProtocol) -> Void) = { device in
    var multiple = lines()
    ofCode()
    thatDontNeedToKnowIfPhoneOrLaptop(device)
}

cellphones.forEach(loop)
laptops.forEach(loop)

answered Jun 9, 2020 at 7:55

Claudio

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1 Comment

Mahi Over a year ago

Thank you, this actually solves my problem even better than the solution I asked for

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