Пимонго: выберите месяц с даты

let text = 'Visit http://lovecats.com/new-posts/ and https://lovedogs.com/best-dogs NOW !';

text = text.replace(/(https?:\/\/[^ ]+)/g, (match, link) => {
  // remove ending slash if there is one
  link = link.replace(/\/?$/, '');
  
  return `<a href="${link}" target="_blank">${link.substr(link.lastIndexOf('/') +1)}</a>`;
});

document.body.innerHTML = text;