Sort and remove duplicates

sort-and-remove-duplicates.js

var items = [ 'ABC', '123', 'BAA' ];
items.sort(function (a, b) {
    var aVal = a.val.toLowerCase();
    var bVal = b.val.toLowerCase(); 
    return ((aVal < bVal) ? -1 : ((aVal > bVal) ? 1 : 0));
});

var last = items[0];
for (var i = 1; i < items.length; i++) {
    var item = items[i];
    if (item.value === last.value) {
        // TODO: Remove item
    }
    last = item;
}