slack-emoji-scrapper.js

const emojiContainer = document.getElementById('custom_emoji');
const emojis = emojiContainer.querySelectorAll('tr.emoji_row');
const scrapped = Array.prototype.slice.call(emojis).map((row) => {
  const url = row.querySelector('span.emoji-wrapper').getAttribute('data-original');
  const name = row.querySelector('[headers="custom_emoji_name"]').innerText;
  return { name, url };
});
console.log('total emojis: ', scrapped.length);
console.log('data model: ', scrapped[Math.floor(Math.random() * scrapped.length)]);