Javascript jquery当前时间戳减去一天（重复30天）

今晚我做这个函数是为了为演示图表页面创建随机数据。我想为过去30天的每一天创建随机数据

我的思考过程是获取当前UTC时间戳，然后为每天的数据减去

（count++*3600000）

。一切正常，但我的时间戳从未改变，因此每天的数据都是针对当天的。想法

//current timestamp
var curr_date = $.now();

//random data generator up to 300
function randomData(label, color) {

    //counter
    var count = 0;

    //rand value
    function randValue() {
        return Math.floor(Math.random() * 300);
    }

    series = [
        {label: label, color: color,
        data: [
            [curr_date - (count * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()],
            [curr_date - (count++ * 3600000), randValue()]
        ]}
    ];

    return series;
}

---

我的大脑必须被炒-86400000是js中一天的价值。

我的大脑必须被炒-86400000是js中一天的价值。

我的大脑必须被炒-86400000是js中一天的价值。

我的大脑必须被炒-86400000是js中一天的价值。

我已经为此做了一项工作：

---

我在这里做了一项工作：

---

我在这里做了一项工作：

---

我在这里做了一项工作：

//current timestamp
var curr_date = $.now();

//random data generator up to 300
function randomData(label, color) {

    //counter
    var count = 0;

    //rand value
    function randValue() {
        return Math.floor(Math.random() * 300);
    }

//this.test=[count,count++,count++];

this.series = [
    {label: label, color: color,
    data: [
        [curr_date - (count * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()],
        [curr_date - (count++ * 3600000), randValue()]
    ]}
];
}

var randomData=new randomData('label','color');
console.log(randomData.series);