Delete all messages in Discord channel/DM

Delete all messages in Discord channel or DM.js

function sleep(milliseconds) {
    var start = new Date().getTime();
    while (true) {
        if ((new Date().getTime() - start) > milliseconds) {
            break;
        }
    }
}

function deleteMessages() {

    const authorId = "your discord ID here";
    const channelId = "channel ID here";
    const deleteAfter = "search?author_id=" + authorId + "&min_id=000000000000000000";
    const baseURL = "https://discordapp.com/api/v6/channels/" + channelId + "/messages/";
    const authToken = "your discord token here";

    const headers = {
        "Authorization": authToken
    };

    try {
      fetch(baseURL + deleteAfter, {
              headers
          })
          .then(resp => resp.json())
          .then(result => {
              console.log("There are " + result.total_results + " messages left to delete.");
              if (result.total_results == 0) {
                  alert("All the messages got deleted. \nPlease refresh the page before pressing 'OK'.");
              }
              result.messages.forEach(function(element) {
                  element.forEach(function(message) {
                      if (message.author.id == authorId && message.hit == true && message.id && message.type == 0 && "content" in message && !message.call) {
                          console.log("Deleting message with Id #" + message.id);
                          console.log(baseURL + message.id);
                          fetch(baseURL + message.id, {
                              headers,
                              method: "DELETE"
                          });
                      }
                  });
                  sleep(100);
              });
          })
          .then(() => deleteMessages());
    } catch (e) {
      //ignore errors
	  console.log(e)
    }
}

deleteMessages();