使用 momentjs 寻找差异时的 NaN

Question

我正在使用 flatpickr 从用户那里获取日期。我从用户那里得到两个日期。现在我想找出两个日期之间的差异，但它显示 NaN。

 computed: {
    total() {
      if (this.selectedRooms && this.selectedRooms.length) {
        const check_in = moment(this.form.check_in, "d-m-Y H:i");
        const check_out = moment(this.form.check_out, "d-m-Y H:i");

        const nights = check_in.diff(check_out, "days");
       
        let total = 0;
        for (let i = 0; i < this.selectedRooms.length; i++) {
          if (this.invoice.nights) {
            total += +this.selectedRooms[i][this.type] * +nights;
          } else {
            total += +this.selectedRooms[i][this.type];
          }
        }
        return total;
      } else {
        return 0;
      }
    }
}

Flatpickr 配置

 configdateTimePicker: {
        enableTime: true,
        dateFormat: "d-m-Y H:i",
      },

错误

NaN

当我在不解析日期的情况下尝试它时，它显示无效日期

Answer 1

Formatting/parsing 令牌在 flatpickr and moment. So when parsing to moment object, you must follow moment formatting/parsing token

中不同

const date1 = "25-08-2020 21:38"
const date2 = "26-08-2020 21:38"
const firstDate = moment(date1, "DD-MM-YYYY HH:mm")
const secondDate = moment(date2, "DD-MM-YYYY HH:mm")

console.log(firstDate.diff(secondDate, "days"))

<script src="https://momentjs.com/downloads/moment.min.js"></script>

Answer 2

查找日期差异不需要格式化。您可以使用以下代码。

 const date1 = '2020-08-25 12:00:00';
        const date2 = '2020-08-26 12:00:00';
        const firstDate = moment(date1);
        const secondDate = moment(date2);
       console.log(firstDate.diff(secondDate, "days"))

使用 momentjs 寻找差异时的 NaN

NaN while finding Difference using momentjs

javascript

momentjs

flatpickr