js 数组随机乱序

 //将数据乱序
    this.shuffle = function (o) {     
        var a = clone(o);
        var len = a.length;
        var len_1 = len - 1;
        for (var i = 0; i < len_1; i++) {
            var index = parseInt(Math.random() * (len - i));
            var temp = a[index];
            a[index] = a[len_1 - i];
            a[len_1 - i] = temp;
        }
        return a;
    }

想用更多的方法请打开JavaScript基础包

转载于:https://my.oschina.net/u/3875237/blog/3024740