title: How can I add number to getMonth() + 1, it is getting added as string
body: <p>when I do new Date().getMonth()+ 1 it gives 111 instead os december ie 12. I know that it's indexed from 0 but I can't figure out how to add 1 to it.</p>
  
  <pre><code>client.on('friendMessage', (friend, message) =&gt; {
      fs.writeFile("./ChatLogs/UserLogs/" + friend.getSteamID64() + "-log-" + new Date().getDate() + "-" + new Date().getMonth()+ 1 + "-" + new Date().getFullYear() + ".json", JSON.stringify({ logs: userLogs[friend.getSteamID64()] }), (ERR) =&gt; {
          if (ERR) {
              console.log("## An error occurred while writing UserLogs file: " + ERR);
          }
      });
      chatLogs += friend.getSteamID64() + " : " + message + "\n";
      fs.writeFile("./ChatLogs/FullLogs/log-" + new Date().getDate() + "-" + new Date().getMonth()+ 1 + "-" + new Date().getFullYear() + ".txt", chatLogs, (ERR) =&gt; {
          if (ERR) {
              console.log("## An error occurred while writing FullLogs file: " + ERR);
          }
      });
  }):;
  </code></pre>