I’ve recently been working on a WordPress plugin for a client that includes the ability to filter the results via multiple select boxes, with the contents of the select boxes themselves filtered so only the relevant options are shown.

It’s a nice little solution that I’d love to show off, but alas, I’m NDA’s and can’t talk about work for that client.

What I can share though is a neat little solution for sorting the contents of select lists alphabetically. It’s borrowed from elsewhere on the web, so not my own work, but useful nonetheless.

var options = $('select.whatever option');
    var arr = options.map(function(_, o) {
        return {
            t: $(o).text(),
            v: o.value,
            s: $(o).prop('selected')
        };
    }).get();
    arr.sort(function(o1, o2) {
        return o1.t > o2.t ? 1 : o1.t < o2.t ? -1 : 0;
    });
    options.each(function(i, o) {
        o.value = arr[i].v;
        $(o).text(arr[i].t);
        $(o).prop('selected', arr[i].s);
    });