按类别的Jquery自动完成不返回选定的结果

我试图从类别示例中得到自动完成的结果列表框值，并且我无法像其他示例那样使用它。 我一定在做一些愚蠢的事情。

    
    $.widget( "custom.catcomplete", $.ui.autocomplete, {
        _renderMenu: function( ul, items ) {
            var self = this,
                currentCategory = "";
            $.each( items, function( index, item ) {
                if ( item.category != currentCategory ) {
                    ul.append( "" + item.category + "" );
                    currentCategory = item.category;
                }
                self._renderItem( ul, item );
            });
        },
                /* I ADDED THIS */
        select: function(event, ui){

                    alert(ui.item.value);
                }
    });
    
    
    $(function() {
        var data = [
            { label: "anders", category: "" },
            { label: "andreas", category: "" },
            { label: "antal", category: "" },
            { label: "annhhx10", category: "Products" },
            { label: "annk K12", category: "Products" },
            { label: "annttop C13", category: "Products" },
            { label: "anders andersson", category: "People" },
            { label: "andreas andersson", category: "People" },
            { label: "andreas johnson", category: "People" }
        ];


    $( "#search" ).catcomplete({
        delay: 0,
        source: data
    });
});
</script>

---

我想到了。 我需要把它放在这里：

$("#search").catcomplete({
    delay: 0,
    source: data,
    select: function(event, ui){
    alert(ui.item.label);
    }
});

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