Array/Tuple to Union

[antfu]

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An ArrayToUnions<T> generic coverting array/tuple to its values' union

const arr = ['foo', 'bar'] as const

type union = ArrayToUnion<typeof arr> // expect to be 'foo' | 'bar'

[antfu]

It's doable: https://github.com/andnp/SimplyTyped#unionizetuple

[antfu]

Resolved by #7