Javascript排序数组由两个字段组成

grouperArray.sort(function (a, b) {
    var aSize = a.gsize;
    var bSize = b.gsize;
    var aLow = a.glow;
    var bLow = b.glow;
    console.log(aLow + " | " + bLow);      
    return (aSize < bSize) ? -1 : (aSize > bSize) ? 1 : 0;
});
grouperArray.sort(function (a, b) {
    var aSi