datetime_extension 时间类扩展
TODO
Features
- 🕒 Nearly the same API as Day.js
- 💪 Contains Immutable Methods
- 🔗 Chainable
- 👀 Useful formatting method
- ⚙️ Plugin system
- 🌐 I18n support
Documentation
API
final d1=DateTime.parse("2020-01-01");
final d2=DateTime.parse("2022-01-01");
| API | Usage | Result |
|---|---|---|
| clone | d1.clone() | 复制一个DateTime |
| addTime | DateTime.now().addTime(1,"d") | 加一天 |
| subtractTime | DateTime.now().subtractTime(1,"d") | 减一天 |
| startOf | DateTime.now().startOf('year') | 返回今年一月一日的复制的 DateTime 对象 |
| endOf | DateTime.now().endOf('year') | 返回今年12月31日的复制的 DateTime 对象 |
| format | DateTime.parse('2019-01-25').format('DD/MM/YYYY') | '25/01/2019' |
| isAfter | d2.isAfter(d1) | true |
| isAfterUnit | d2.isAfterUnit(d1,"year") | false |
| isBefore | d2.isBefore(d1) | false |
| isBeforeUnit | d2.isBeforeUnit(d1,"year") | true |
| isSame | d2.isSame(d1) | false |
| isSameUnit | d2.isSameUnit(d1,"M") | false |
| isSameOrAfter | d2.isSameOrAfter(d1,"M") | false |
| isSameOrBefore | d2.isSameOrBefore(d1,"M") | false |
| isBetween | DateTime.parse('2018-01-01').isBetween(DateTime.parse('2017-12-31'), DateTime.parse('2018-01-02')) | true |
License
Distributed under the MIT License.
question
- DateTime.parse('2021-05-01T10:30:30.000Z').diff("2021-04-30T10:30:30.000Z") why is 0+1/365
dayjs is 0+1/30/12 see dayjs
in my opinion, 2021-03-01 is one year and 28 days more than 2020-02-01. It can be disassembled into 2021-02-01 which is one year more than 2020-02-01. In addition, 2021-03-01 is 28 days more than 2021-02-01
在我看来, 2021-03-01 比 2020-02-01 多了 1年零28天 ，可以拆解为 2021-02-01比2020-02-01多了1年，加上2021-03-01比2021-02-01多了28天。