Index Test
by nevkatz
HTML
<ul>
<li>One</li>
<li>Two</li>
<li>Three</li>
</ul>
JavaScript
let items = Array.from(document.querySelectorAll('li'));
for (var item of items) {
item.onclick = function(e) {
let idx = items.indexOf(e.target);
console.log('idx: ' + idx);
}
}