Variable setAssertion`Const`

setAssertion: AssertionStandardSchemaSync<
    readonly ["to be a Set"],
    ZodCustom<Set<unknown>, Set<unknown>>,
    never,
> = ...

Asserts that the subject is a Set instance.

Example

expect(new Set(), 'to be a Set'); // passes
expect([], 'to be a Set'); // fails