Add random emojis in Slack

boost.js

const emojis = [
  "clapping_fast",
  "clapping_very_fast",
  "kami",
  "saikou",
  "_waiwai",
  "tada",
  "beer-1",
  "sparkle",
  "heart",
  "kinako_woot",
  "pikachu_dancing",
  "bling",
  "blob-hearts",
  "clap",
  "blob_cheer",
  "rocket",
  "yoi",
  "laughing",
  "raised_hands",
  "kirby_pan",
  "cherry_blossom",
  "gogogogo",
  "nyangif16",
  "sunshine",
  "炎_fire",
];

const select = (array, limit) => {
  for (let i = array.length - 1; i > 0; i--) {
    const j = Math.floor(Math.random() * (i + 1));
    [array[i], array[j]] = [array[j], array[i]];
  }
  return array.slice(0, limit);
};

const addReaction = ($e, emoji) => {
  $e.value = emoji;
  $e.simulated = true;
  if ($e._valueTracker) {
    $e._valueTracker.setValue("");
  }
  const search = new Event("input", { bubbles: true });
  $e.dispatchEvent(search);
  const $i = document.getElementsByClassName("p-emoji_picker__list_item")[0];
  const click = new MouseEvent("click", {
    bubbles: true,
    cancelable: true,
    view: window,
    shiftKey: true,
  });
  $i.dispatchEvent(click);
};

const addReactionWithDelay = ($e, emoji) => {
  return new Promise((resolve) => {
    setTimeout(() => {
      addReaction($e, emoji);
      resolve();
    }, 300);
  });
};

document.addEventListener("dblclick", (event) => {
  var $e = document.elementFromPoint(event.clientX, event.clientY);
  if ($e && $e.hasAttribute("data-input-metric-boundary")) {
    if ($e.getAttribute("data-input-metric-boundary") === "emoji_picker") {
      (async function () {
        for (let emoji of select(emojis, 10)) {
          await addReactionWithDelay($e, emoji);
        }
      })();
    }
  }
});