const regex = /\[(.*?)\]\(([-a-zA-Z0-9@:%_\+.~#?&\/\(\)=]*)\)/g;
const markdown = "[Google](https://www.google.com) is a search engine. [Wikipedia](https://en.wikipedia.org/wiki/Main_Page) is an online encyclopedia.";

let match;
while ((match = regex.exec(markdown)) !== null) {
  const linkText = match[1];
  const linkUrl = match[2];
  console.log(`Link text: ${linkText}`);
  console.log(`Link URL: ${linkUrl}`);
}