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Add a bell emoji to unread comments on HackerNews
// Can be used with
// This snippet is released under the terms of the CC0 license:
const cache_key = 'hn_comments_views'
const cache = JSON.parse(localStorage.getItem(cache_key) || '{}')
document.querySelectorAll('.athing.comtr').forEach(comm => {
if (!cache[]) {
const span = document.createElement('span')
span.innerHTML = '🔔' // :bell: emoji
cache[] = true
localStorage.setItem(cache_key, JSON.stringify(cache))
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