[C#-JS]把json日期轉型成date格式

EX:ChangeDateTimeFormat(Date(1242357713797+0800))

//json日期轉型成date 格式
function ChangeDateTimeFormat(cellval) {
     var date = new Date(parseInt(cellval.replace("/Date(", "").replace(")/", ""), 10));
     var month = date.getMonth() + 1 < 10 ? "0" + (date.getMonth() + 1) : date.getMonth() + 1;
     var currentDate = date.getDate() < 10 ? "0" + date.getDate() : date.getDate();
     var hr = date.getHours() < 10 ? "0" + date.getHours() : date.getHours();
     var MM = date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes();
     var ss = date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();
     return date.getFullYear() + "-" + month + "-" + currentDate + " " + hr + ":" + MM + ":" + ss;
}