javascript sort of HTML elements

Question

I\'m trying to sort an li elements and get an unexpacted result I need to sort it three times to get it correctly,

where have I mistaken? javascript

Answer 1

A custom compareFunction needs to return -1, 0 or 1.

function sort_by_name(a, b) {
    var sa = a.innerHTML.toLowerCase(), sb = b.innerHTML.toLowerCase();
    return sbsa ? 1 : 0;
}