Files
codeql-action/node_modules/tldts-core/src/subdomain.ts
2025-04-02 12:43:14 +00:00

12 lines
322 B
TypeScript

/**
* Returns the subdomain of a hostname string
*/
export default function getSubdomain(hostname: string, domain: string): string {
// If `hostname` and `domain` are the same, then there is no sub-domain
if (domain.length === hostname.length) {
return '';
}
return hostname.slice(0, -domain.length - 1);
}