Number page headings
Adds sequential numbers before top-level headings to make a long page structure easier to follow.
Code to copy
(function () {
try {
var heads = document.querySelectorAll('.notion-page-content .notion-header-block');
var i = 0;
heads.forEach(function (h) {
if (h.dataset.jzNum) return;
i++;
var t = h.querySelector('.notranslate');
if (t) t.insertAdjacentText('afterbegin', i + '. ');
h.dataset.jzNum = '1';
});
if (!heads.length) alert('No top-level headings found.');
} catch (e) { alert('Could not number headings: ' + e.message); }
})();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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