const regex = /\*\*\[(.+)\]> \[([^*]+)\]/gm;  const str = `**[Никнейм]> [сообщение]** **[Никнейм2]> [сообщение2]**`; let m;  while ((m = regex.exec(str)) !== null) {     if (m.index === regex.lastIndex) {         regex.lastIndex++;     }          if(m.length < 3) continue;     const nickname = m[1];     const message = m[2];     console.log(nickname);     console.log(message); }