unlike-tweets.js

// unlike tweets using twitter web (use this on https://twitter.com/USERNAME/likes)
//
// @param {n} the number of likes to delete
// @param {maxWaitRetries} maximum number of times to try loading more likes when
// everything on the page has been unliked
const unlike = async (n, maxWaitRetries = 10) => {
  let total = 0;
  while(total < n) {
    // get every like button on the page and click it
    const likeButtons = await document.querySelectorAll('[data-testid="unlike"]');
    likeButtons.forEach(e => e.click())

    const unliked = likeButtons.length;
    total += unliked;

    console.log(`${unliked} unliked, ${total} total so far`);

    // delete every tweet on the page from the DOM to avoid slowdown
    document.querySelectorAll('[role="article"]').forEach(e => e.remove());

    // scroll to the bottom of the page and wait for new tweets to load
    window.scrollTo(0,document.body.scrollHeight);
    const retries = 0;
    while (!document.querySelector('[role="article"]')) {
      await new Promise(r => setTimeout(r, 300));
      console.log('waiting for tweets to load');
      retries += 1;

      if (retries >= maxWaitRetries) {
        throw Error('Exceeded maximum number of retries for getting more tweets');
      }
    }
  }
}