arXiv: auto-expand collapsed sections
Automatically opens collapsed Comments, MSC class and Keywords blocks so all paper metadata is visible right away.
Code to copy
// Auto-expand collapsed sections (Comments, MSC class, ACM class)
(function () {
function expand() {
document.querySelectorAll('details:not([open])').forEach(function (d) {
d.open = true;
});
document.querySelectorAll('.comments, .msc-classes, .acm-classes, .keywords').forEach(function (el) {
el.style.display = 'block';
el.removeAttribute('hidden');
});
document.querySelectorAll('a, button').forEach(function (el) {
if (el.dataset.jzArxExp) { return; }
var t = (el.textContent || '').toLowerCase().trim();
if (/^(show|expand|view|more) (comments|details|metadata)/.test(t)) {
el.dataset.jzArxExp = '1';
el.click();
}
});
}
expand();
new MutationObserver(function () {
clearTimeout(window.__jzArxExp);
window.__jzArxExp = setTimeout(expand, 350);
}).observe(document.body, { childList: true, subtree: 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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