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It Every

docs/data/it-every.md

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Returns true if all elements of a subset are contained in a collection.

Examples:

go
seq := func(yield func(int) bool) {
    _ = yield(1)
    _ = yield(2)
    _ = yield(3)
    _ = yield(4)
    _ = yield(5)
}
hasAll := it.Every(seq, 2, 4)
// hasAll == true
go
seq := func(yield func(string) bool) {
    _ = yield("apple")
    _ = yield("banana")
    _ = yield("cherry")
}
hasAll := it.Every(seq, "apple", "orange")
// hasAll == false (orange is not in collection)