Function isExternalUrl

scripts/verify-internal-links-in-toc.js:35–39

(url = "")

const sortByLocale = (left, right) => left.localeCompare(right);

function isExternalUrl(url = "") {
  return (
    url.startsWith("//") || url.includes("://") || url.startsWith("mailto:")
  );
}

function stripQueryAndHash(url = "") {
  const q = url.split("?")[0];