EnumeratedSequence

An enumeration of the elements of a sequence or collection.

@frozen struct EnumeratedSequence<Base> where Base : Sequence

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FNV24 hash: 3D4RX

EnumeratedSequence is a sequence of pairs (n, x), where ns are consecutive Int values starting at zero, and xs are the elements of a base sequence.

To create an instance of EnumeratedSequence, call enumerated() on a sequence or collection. The following example enumerates the elements of an array.

var s = ["foo", "bar"].enumerated()
for (n, x) in s {
    print("\(n): \(x)")
}
// Prints "0: foo"
// Prints "1: bar"