js json中的時間轉換格式

//根據json中的日期格式，轉換成yyyy-mm-dd HH:mm:ss
function ChangeDateFormat(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();
return date.getFullYear() + "-" + month + "-" + currentDate + " " + date.getHours() + ":" + date.getMinutes() + ":" + date.getSeconds();
}