const trimSlashes = (str) => str.replace(/^\/+|\/+$/g, '');// Orconst trimSlashes = (str) => str.split('/').filter(Boolean).join('/');
const trimSlashes = (str: string): string => str.replace(/^\/+|\/+$/g, '');// Orconst trimSlashes = (str: string): string => str.split('/').filter(Boolean).join('/');
trimSlashes('//hello/world///'); // hello/world