Qiita の通知カウント欄をいじって遊ぶ

qiita-notification-count-change.js

//count up
javascript:(function(d){
  var node = d.querySelector(".st-Header_notifications");
  node.classList.add("st-Header_notifications-active");
  node.innerText = parseInt(node.innerText, 10) + 1;
})(document);

//reset
javascript:(function(d){
  var node = d.querySelector(".st-Header_notifications");
  node.classList.remove("st-Header_notifications-active");
  node.innerText = 0;
})(document);