rrule.js 用于处理日历日期重复规则的库。rrule.js支持iCalendar RFC中定义的重复规则，但有一些重要 区别。它是rrule出色的python-dateutil库中模块 的部分端口 。最重要的是，它支持自然语言往返规则的解析和序列化。

安装

$ yarn add rrule
# or
$ npm install rrule

用法

import { RRule, RRuleSet, rrulestr } from 'rrule'

// Create a rule:
const rule = new RRule({
  freq: RRule.WEEKLY,
  interval: 5,
  byweekday: [RRule.MO, RRule.FR],
  dtstart: new Date(Date.UTC(2012, 1, 1, 10, 30)),
  until: new Date(Date.UTC(2012, 12, 31))
})

// Get all occurrence dates (Date instances):
rule.all()
[ '2012-02-03T10:30:00.000Z',
  '2012-03-05T10:30:00.000Z',
  '2012-03-09T10:30:00.000Z',
  '2012-04-09T10:30:00.000Z',
  '2012-04-13T10:30:00.000Z',
  '2012-05-14T10:30:00.000Z',
  '2012-05-18T10:30:00.000Z',

 /* … */]

// Get a slice:
rule.between(new Date(Date.UTC(2012, 7, 1)), new Date(Date.UTC(2012, 8, 1)))
['2012-08-27T10:30:00.000Z',
 '2012-08-31T10:30:00.000Z']

// Get an iCalendar RRULE string representation:
// The output can be used with RRule.fromString().
rule.toString()
"DTSTART:20120201T093000Z\nRRULE:FREQ=WEEKLY;INTERVAL=5;UNTIL=20130130T230000Z;BYDAY=MO,FR"

// Get a human-friendly text representation:
// The output can be used with RRule.fromText().
rule.toText()
"every 5 weeks on Monday, Friday until January 31, 2013"

链接: https://fly63.com/nav/2727