js計算當前時間差

 

        function timesFun(timesData) {
            //如果時間格式是正確的，那下面這一步轉化時間格式就可以不用了
            var dateBegin = new Date(timesData); //將-轉化為/，使用new Date
            var dateEnd = new Date(); //獲取當前時間
            var dateDiff = dateEnd.getTime() - dateBegin.getTime(); //時間差的毫秒數
            console.log(dateBegin,dateDiff, '111111111111')
            console.log(dateEnd, dateDiff, '22222222222222')
            var dayDiff = Math.floor(dateDiff / (24 * 3600 * 1000)); //計算出相差天數
            var leave1 = dateDiff % (24 * 3600 * 1000); //計算天數后剩余的毫秒數
            var hours = Math.floor(leave1 / (3600 * 1000)); //計算出小時數
            //計算相差分鍾數
            var leave2 = leave1 % (3600 * 1000); //計算小時數后剩余的毫秒數
            var minutes = Math.floor(leave2 / (60 * 1000)); //計算相差分鍾數
            //計算相差秒數
            var leave3 = leave2 % (60 * 1000); //計算分鍾數后剩余的毫秒數
            var seconds = Math.round(leave3 / 1000);
            var timesString = "";

            if (dayDiff != 0) {
                timesString = dayDiff + "天之前";
            } else if (dayDiff == 0 && hours != 0) {
                timesString = hours + "小時之前";
            } else if (dayDiff == 0 && hours == 0) {
                timesString = minutes + "分鍾之前";
            }

            return {
                timesString: timesString
            };
        }
        var timesData = "2022-01-25 01:25:02";
        console.log(timesFun(timesData))

 

 

function valideNull(val) {
            return typeof val == 'undefined' || val == '' || val == null || JSON.stringify(val) == '{}';
        }
        function zeroize(num) {
            return (String(num).length == 1 ? '0' : '') + num;
        }

        function timestampFormat(time) {
            let timestamp = '';
            if (!valideNull(time)) {
                var arr = time.replace(/ |:/g, '-').split('-');
                let date = new Date(Date.UTC(arr[0], arr[1] - 1, arr[2], arr[3] - 8, arr[4]));
                timestamp = date.getTime() / 1000;
            } else {
                return '';
            }


            var curTimestamp = parseInt(new Date().getTime() / 1000); //當前時間戳
            var timestampDiff = curTimestamp - timestamp; // 參數時間戳與當前時間戳相差秒數
            var curDate = new Date(curTimestamp * 1000); // 當前時間日期對象
            var tmDate = new Date(timestamp * 1000); // 參數時間戳轉換成的日期對象
            var Y = tmDate.getFullYear(),
                m = tmDate.getMonth() + 1,
                d = tmDate.getDate();
            var H = tmDate.getHours(),
                i = tmDate.getMinutes();
            var nh = curDate.getHours();
            var ch = nh - H;
            
            // s = tmDate.getSeconds()
            // var nh = curDate.getHours(),
            if (timestampDiff < 60) {
                // 一分鍾以內
                return '剛剛';
            } else if (timestampDiff < 3600) {
                // 一小時前之內
                return Math.floor(timestampDiff / 60) + '分鍾前';
            } else if (curDate.getFullYear() == Y && curDate.getMonth() + 1 == m && curDate.getDate() == d) {

                return ch + '小時前';
            } else {
                var newDate = new Date((curTimestamp - 86400) * 1000); // 參數中的時間戳加一天轉換成的日期對象
                var newDate2 = new Date((curTimestamp - (86400 * 2)) * 1000); //參數中的時間戳加兩天轉換成的日期對象
                var newDate3 = new Date((curTimestamp - (86400 * 3)) * 1000); //參數中的時間戳加三天轉換成的日期對象
                if (newDate.getFullYear() == Y && newDate.getMonth() + 1 == m && newDate.getDate() == d) {
                    return '一天前 ';
                } else if (newDate2.getFullYear() == Y && newDate2.getMonth() + 1 == m && newDate2.getDate() == d) {
                    return '兩天前';
                } else if (newDate3.getFullYear() == Y && newDate3.getMonth() + 1 == m && newDate3.getDate() == d) {
                    return '三天前';
                } else {
                    return Y + '-' + zeroize(m) + '-' + zeroize(d);
                }
            }
        }

        var timesData = "2022-02-08 11:47:02";
        console.log(timestampFormat(timesData))