Threads: J/K keys to jump between posts
Adds J and K keyboard shortcuts that scroll the feed to the next and previous post.
Code to copy
// Keyboard: press J / K to step between posts in the feed
let idx = -1;
function posts() {
return Array.from(document.querySelectorAll('[data-pressable-container]'))
.filter(p => p.offsetParent !== null);
}
document.addEventListener('keydown', e => {
if (e.target.matches('input, textarea, [contenteditable="true"]')) return;
const key = e.key.toLowerCase();
if (key !== 'j' && key !== 'k') return;
const list = posts();
if (!list.length) return;
idx = key === 'j' ? Math.min(idx + 1, list.length - 1) : Math.max(idx - 1, 0);
list[idx].scrollIntoView({ behavior: 'smooth', block: 'center' });
});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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