It Last - Lo — ContextQMD

Returns the last element of a collection and a boolean indicating availability. Returns zero value and false if the collection is empty.

Examples:

seq := func(yield func(int) bool) {
    _ = yield(10)
    _ = yield(20)
    _ = yield(30)
}
last, ok := it.Last(seq)
// last == 30, ok == true

seq := func(yield func(string) bool) {
    // empty sequence
}
last, ok := it.Last(seq)
// last == "", ok == false (zero value for string)