Refactor: continues to rewrite to TS

Build/lib/cached-tld-parse.ts

@@ -0,0 +1,17 @@
+import tldts from 'tldts';
+import { createCache } from './cache-apply';
+import { PublicSuffixList } from 'gorhill-publicsuffixlist';
+
+const cache = createCache('cached-tld-parse', true);
+
+const sharedConfig = { allowPrivateDomains: true };
+
+export const parse = (domain: string) => cache.sync(domain, () => tldts.parse(domain, sharedConfig));
+
+let gothillGetDomainCache: ReturnType<typeof createCache> | null = null;
+export const createCachedGorhillGetDomain = (gorhill: PublicSuffixList) => {
+  return (domain: string) => {
+    gothillGetDomainCache ??= createCache('cached-gorhill-get-domain', true);
+    return gothillGetDomainCache.sync(domain, () => gorhill.getDomain(domain[0] === '.' ? domain.slice(1) : domain))
+  };
+};