[1] tweet-delete.md

🐦 Look, I'm not saying you should do this.

1. Go to your Twitter profile page.

2. Paste this into the console.

3. Hit enter.

But if you did — and left it running for a long while — it might eventually delete all tweets and retweets from your Twitter account.

Again, not sure why anyone would do that. Perhaps as a fun little JavaScript experiment. Pretty sure it voids the warranty. Just sayin'.

[2] tweet-delete.js

// ===============
// START: Closure.
// ===============

(() => {
  // ==========
  // Set later.
  // ==========

  let timerForElement;

  // =========================
  // Helper: wait for element.
  // =========================

  const waitForElement = (selector) => {
    // Clear timer.
    clearInterval(timerForElement);

    // Expose promise.
    return new Promise((resolve) => {
      // Set timer.
      timerForElement = setInterval(() => {
        // Get element.
        const element = document.querySelector(selector);

        // Element exists: YES.
        if (element) {
          // Clear timer.
          clearInterval(timerForElement);

          // Promise resolve.
          resolve(element);
        }

        // Slight delay.
      }, 16);
    });
  };

  // ======================
  // Helper: click buttons.
  // ======================

  const handleButtonClick = () => {
    // Get elements.
    const section = document.querySelector('section[aria-labelledby="accessible-list-0"]');
    const buttonForMenu = section?.querySelector('[aria-haspopup="menu"]');
    const buttonForUndoRetweet = section?.querySelector('[data-testid="unretweet"]');

    // ======================================
    // Button for "undo retweet" exists: YES.
    // ======================================

    if (buttonForUndoRetweet) {
      // Fire events.
      buttonForUndoRetweet.click();

      // Get elements.
      waitForElement('[data-testid="unretweetConfirm"]').then((buttonForConfirm) => {
        // Button exists: YES.
        if (buttonForConfirm) {
          // Fire events.
          buttonForConfirm.click();
        }
      });

      // ==================================
      // Button for "dot menu" exists: YES.
      // ==================================
    } else if (buttonForMenu) {
      // Fire events.
      buttonForMenu.click();

      // Get elements.
      waitForElement('[data-testid="Dropdown"] [role="menuitem"]').then((buttonForDelete) => {
        // Button exists: YES.
        if (buttonForDelete && buttonForDelete.textContent.match('Delete')) {
          // Fire events.
          buttonForDelete.click();

          // Get elements.
          waitForElement('[data-testid="confirmationSheetConfirm"]').then((buttonForConfirm) => {
            // Button exists: YES.
            if (buttonForConfirm) {
              // Fire events.
              buttonForConfirm.click();
            }
          });
        }
      });
    }
  }

  // ========
  // Kickoff.
  // ========

  setInterval(handleButtonClick, 5000);

  // =============
  // END: Closure.
  // =============
})();