JSON 数目字排序 多字段排序

原文http://bbs.csdn.net/topics/390594744?page=1#post-395599672

//排序数组
function SortBy(field, reverse, primer) {
    reverse = (reverse) ? -1 : 1;
    return function (a, b) {
        a = a[field];
        b = b[field];
        if (typeof (primer) != 'undefined') {
            a = primer(a);
            b = primer(b);
        }
        if (a < b) return reverse * -1;
        if (a > b) return reverse * 1;
        return 0;
    }
}

nodes.sort(SortBy('orderNum', false, parseInt));

把过个字段合并成单个 然后 排序字符串

nodes.sort(function (a, b) { return a.sort.localeCompare(b.sort) });