js formato de tiempo de interceptación / conversión

js 

   console.log(create_time)//2020-12-10T06:49:59.189Z

      // 转换时间格式
      let date = create_time;
      let year = date.substring(0, 5);
      let month = date.substring(5, 8);
      let day = date.substring(8, 10);
      let hour = date.substring(11, 14);
      let minute = date.substring(14, 17);
      let second = date.substring(17, 19);
      let newDate = year + month + day + " " + hour + minute + second;

       console.log(newDate)//2020-12-10 06:49:59

      newDate = newDate.replace(/-/g, '/')
      console.log(newDate)//2020/12/10 06:49:59

Producción