get index vanilla js
function index(el) {
if (!el) return -1;
var i = 0;
do {
i++;
} while (el = el.previousElementSibling);
return i;
}
Are there any code examples left?
New code examples in category Javascript
function index(el) {
if (!el) return -1;
var i = 0;
do {
i++;
} while (el = el.previousElementSibling);
return i;
}