How to select multiple mails delete in html in gmail

To select multiple emails and delete them in Gmail using HTML, you can use the following steps:

Step 1: Get the email IDs

First, you need to get the email IDs of the emails you want to select and delete. You can do this by using the getMessages() method of the Gmail API, which returns a list of messages in the inbox.

Here's an example of how you can do this using JavaScript:

function getMailIds() {
  var mailIds = [];
  var inbox = GmailApp.getInboxThreads();
  for (var i = 0; i < inbox.length; i++) {
    var thread = inbox[i];
    var messages = thread.getMessages();
    for (var j = 0; j < messages.length; j++) {
      var message = messages[j];
      mailIds.push(message.getId());
    }
  }
  return mailIds;
}

Step 2: Select the emails

Once you have the email IDs, you can use the select() method of the Gmail API to select the emails. You can pass an array of email IDs to the select() method to select multiple emails at once.

Here's an example of how you can do this using JavaScript:

function selectMails(mailIds) {
  var thread = GmailApp.getInboxThreads();
  for (var i = 0; i < mailIds.length; i++) {
    var messageId = mailIds[i];
    GmailApp.selectMessage(messageId);
  }
}

Step 3: Delete the emails

Finally, you can use the delete() method of the Gmail API to delete the selected emails.

Here's an example of how you can do this using JavaScript:

function deleteMails() {
  var selectedMessages = GmailApp.getSelectedMessages();
  for (var i = 0; i < selectedMessages.length; i++) {
    var message = selectedMessages[i];
    GmailApp.deleteMessage(message);
  }
}

Putting it all together

Here's an example of how you can put all these steps together to select multiple emails and delete them in Gmail using HTML:

<!DOCTYPE html>
<html>
  <head>
    <title>Select and Delete Multiple Emails</title>
    <script src="https://apis.google.com/js/api.js"></script>
    <script>
      function getMailIds() {
        var mailIds = [];
        var inbox = GmailApp.getInboxThreads();
        for (var i = 0; i < inbox.length; i++) {
          var thread = inbox[i];
          var messages = thread.getMessages();
          for (var j = 0; j < messages.length; j++) {
            var message = messages[j];
            mailIds.push(message.getId());
          }
        }
        return mailIds;
      }

      function selectMails(mailIds) {
        var thread = GmailApp.getInboxThreads();
        for (var i = 0; i < mailIds.length; i++) {
          var messageId = mailIds[i];
          GmailApp.selectMessage(messageId);
        }
      }

      function deleteMails() {
        var selectedMessages = GmailApp.getSelectedMessages();
        for (var i = 0; i < selectedMessages.length; i++) {
          var message = selectedMessages[i];
          GmailApp.deleteMessage(message);
        }
      }

      function selectAndDeleteMails() {
        var mailIds = getMailIds();
        selectMails(mailIds);
        deleteMails();
      }
    </script>
  </head>
  <body>
    <button onclick="selectAndDeleteMails()">Select and Delete Multiple Emails</button>
  </body>
</html>

Note that this code uses the Gmail API, which requires you to enable the Gmail API in the Google Cloud Console and obtain credentials to use with your script. Additionally, this code assumes that you have already authenticated with the Gmail API using the gapi.auth2 library.

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How to select multiple mails delete in html in gmail