/** Trim the username and strip the leading @. */ const normalizeUsername = (username: string): string => { const trimmed = username.trim(); if (trimmed[0] === '@') { return trimmed.slice(1); } else { return trimmed; } }; function slugify(text: string): string { return text .trim() .toLowerCase() .replace(/[^\w]/g, '-') // replace non-word characters with a hyphen .replace(/-+/g, '-'); // replace multiple hyphens with a single hyphen } export { normalizeUsername, slugify, };