values.ts

export const values
    : <T>(a: readonly T[]) => Iterable<T>
    = a => ({ *[Symbol.iterator]() { yield *a } })

const unitTest = () => {
    // const it = [1, 2, 3] |> values    //< F# style pipe
    // const it = [1, 2, 3] |> values(%) //< Hack style pipe
    const x = values([1, 2, 3])
    const result = Array.from(x)
    const r = JSON.stringify(result)
    if (r !== JSON.stringify([1, 2, 3])) {
        throw new Error(`Expected [1, 2, 3], but got ${r}`)
    }
}

unitTest()