@clerk/clerk-js/dist/types/utils/organization.d.ts

Clerk JS library

/**
 * Checks and assumes a string is an organization ID if it starts with 'org_', specifically for
 * disambiguating with slugs. `_` is a disallowed character in slug names, so slugs cannot
 * start with `org_`.
 */
export declare function isOrganizationId(id: string | null | undefined): boolean;