微信小程序如何实现兼容ios的时间戳与时间互转代码？

   // 把时间日期转成时间戳
        timestrTotimestamp(time) {
            const getDay = new Date(time.replace(/-/g, '/')).getTime(); // new Date(time).getTime()兼容IOS
            return getDay;
        },
   // 把时间戳转成时间日期
        timestampTotimestr(number) {
         
            var date = new Date(number);
            var y = date.getFullYear();
            var m = date.getMonth() + 1;
            m = m < 10 ? ('0' + m) : m;
            var d = date.getDate();
            d = d < 10 ? ('0' + d) : d;
            var h = date.getHours();
            h = h < 10 ? ('0' + h) : h;
            var minute = date.getMinutes();
            var second = date.getSeconds();
            minute = minute < 10 ? ('0' + minute) : minute;
            second = second < 10 ? ('0' + second) : second;
            // return y + '-' + m + '-' + d + ' ' + h + ':' + minute + ':' + second;//年月日时分秒
            return y + '-' + m + '-' + d + ' ' + h + ':' + minute;

        },