literalGuard

Builds a guard accepting exactly the listed values.

Import:

import { literalGuard } from '@mnaoumov/typescript-lib/api-contract';

Signature:

function literalGuard(literals: Readonly<Record<string, true>> | readonly Literal[]): ExpectedTypeGuard<Literal>

Parameters:

Parameter	Type	Description
literals	Readonly<Record<string, true>> | readonly Literal[]	The accepted values, as a list or as the keys of a record.

Returns: ExpectedTypeGuard<Literal> — The guard.