Type Alias $<T, $O>

$: IsUndefined.$<
    T,
    { $else: Assignable.$<T, void, $O>; $then: $ResolveBranch<T, $O, [$Else]> },
>

🧰 type util

Validate if T is undefined.

This is a type util for building custom types. It does not check against special types.

Type Parameters

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