Slack: shortcut for unread channels
With Alt+Shift+R it opens the context menu of every unread channel so you can quickly mark them read.
Code to copy
// Press Alt+Shift+R to open the context menu of every unread channel
function markAllRead(e) {
if (e.altKey && e.shiftKey && (e.key === 'r' || e.key === 'R')) {
e.preventDefault();
const unread = document.querySelectorAll('.p-channel_sidebar__channel--unread');
unread.forEach(function (ch) {
ch.dispatchEvent(new MouseEvent('contextmenu', { bubbles: true }));
});
console.log('[Slack] opened menu on ' + unread.length + ' unread channels; choose "Mark as read"');
}
}
document.addEventListener('keydown', markAllRead, true);How to use this example
- Copy the code with the button above.
- Install JustZix (2 minutes) and open the extension on the target page.
- Add a new rule matching that page.
- Paste the code into the rule's JavaScript panel and save — it runs on every page visit.
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