Js 从时间范围内取随机时间

废话不说 直接上代码

    onGetTimeFrameToTime(starTime, endTime) {
        let m = new Date(starTime);
        let mt = m.getTime();
        let n = new Date(endTime);
        let nt = n.getTime();
        let s = nt - mt;
        let sm = Math.floor(Math.random() * s);
        return new Date(mt + sm);
    }