Swift 3 for loop with increment

Question

How do I write the following in Swift3?

for (f = first; f <= last; f += interval)          
{
    n += 1
}

This is my own attempt

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Answer 1

Simply, working code for Swift 3.0:

let (first, last, interval) = (0, 100, 1)
var n = 0
for _ in stride(from: first, to: last, by: interval) {
    n += 1
}