Count DOM nodes
The action counts the total DOM elements and logs the ten most frequent tag names to the console.
Code to copy
try {
const total = document.querySelectorAll('*').length;
const counts = {};
document.querySelectorAll('*').forEach(function (el) {
const t = el.tagName.toLowerCase();
counts[t] = (counts[t] || 0) + 1;
});
const top = Object.keys(counts)
.sort(function (a, b) { return counts[b] - counts[a]; })
.slice(0, 10)
.map(function (t) { return t + ': ' + counts[t]; });
console.log('JustZix: ' + total + ' DOM nodes total');
console.log('JustZix top tags: ' + top.join(', '));
} catch (err) { console.error('JustZix DOM count:', err); }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.
- Enable the action panel, add a button in the Actions tab and paste the code into it — run it with one click.
Rate this example
No ratings yet — be the first.