Functions As Values

    a = ['ant', 'Bug', 'cat', 'Dog']
    a.sort(); // case-sensitive sort: ['Bug','Dog','ant',cat'] 

    a.sort(function(s,t) { // Case-insensitive sort
        var a = s.toLowerCase();
        var b = t.toLowerCase(); 
        if (a < b) return -1; 
        if (a > b) return 1; 
        return 0;
    }); // => ['ant','Bug','cat','Dog']