https://gist.github.com/linkdd/76fd57d02480c3e36a4e3f8ce39322b1

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linkdd/hackernews-new-comms.js

Last active Sep 15, 2021

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Add a bell emoji to unread comments on HackerNews
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hackernews-new-comms.js

 // Can be used with https://github.com/xcv58/
 Custom-JavaScript-for-Websites-2
 // This snippet is released under the terms of the CC0 license:
 https://creativecommons.org/publicdomain/zero/1.0/deed.en
 const cache_key = 'hn_comments_views'
 const cache = JSON.parse(localStorage.getItem(cache_key) || '{}')
 document.querySelectorAll('.athing.comtr').forEach(comm => {
 if (!cache[comm.id]) {
 const span = document.createElement('span')
 span.innerHTML = '&#x1f514;' // :bell: emoji
 comm.querySelector('.comhead').append(span)
 }
 cache[comm.id] = true
 })
 localStorage.setItem(cache_key, JSON.stringify(cache))

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