Function isStringMember

src/utils/string-enum.ts:7–12

(
  values: T,
  value: string,
)

 * a string-literal union). Narrows `value` to the tuple's element union.
 */
export function isStringMember<const T extends readonly string[]>(
  values: T,
  value: string,
): value is T[number] {
  return values.includes(value);
}

/**
 * Strict (exact-match) parse for an `as const` string tuple. Throws an