在嵌套键上排序数组

对于这个想法,"key"变量变为一个键数组:然后指定要排序的嵌套值的"路径".

function keysrt(arr, keyArr, reverse) {
    var sortOrder = 1;
    if(reverse)sortOrder = -1;
    return arr.sort(function(a, b) {
        var x=a,y=b;
        for (var i=0; i < keyArr.length; i++) {
          x = x[keyArr[i]];
          y = y[keyArr[i]];
        }
        return sortOrder * ((x < y) ? -1 : ((x > y) ? 1 : 0));
    });
} 

keysrt(b,['data','title']);