/Date(1605234812307)/ 转成时间格式

var ak = '/Date(1605234812307)/';
console.log(ak.TimeFormat());

String.prototype.TimeFormat = function () {
  var jsondate = this;
  jsondate = jsondate.replace("/Date(", "").replace(")/", "");
  if (jsondate.indexOf("+") > 0) {
    jsondate = jsondate.substring(0, jsondate.indexOf("+"));
  }
  else if (jsondate.indexOf("-") > 0) {
    jsondate = jsondate.substring(0, jsondate.indexOf("-"));
  }

  var date = new Date(parseInt(jsondate, 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 hour = date.getHours() < 10 ? "0" + date.getHours() : date.getHours();
  var minute = date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes();
  var second = date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();
  return date.getFullYear() + "-" + month + "-" + currentDate+" "+hour + ":" + minute+":"+second;
}

 TimeFormat函数为扩展函数, 在 main.js 文件中引入该文件即可使用