javascript - 当年份设置为20年时防止Moment js猜年份

Question

我正在使用moment js，想检查用户在输入框中输入的年份。我的代码如下所示。

const year = moment('10/12/20', 'DD/MM/YYYY').format("YYYY");

year 返回的年份是 2020 而不是 0020。有谁知道如何防止 moment 变得“太聪明”？

我正在使用版本 "moment": "2.17.1"。另外，可能与此有关 issue .

It seems to work here so may be a version issue.

Answer 1

使用由单个 Y 组成的年份标记，如下所示:

const year = moment('10/12/20', 'DD/MM/Y').format("YYYY");

来自momentjs documentation :

YYYY from version 2.10.5 supports 2 digit years, and converts them to a year near 2000 (same as YY).

Y was added in 2.11.1. It will match any number, signed or unsigned. It is useful for years that are not 4 digits or are before the common era. It can be used for any year.