IsoWeeksInYear

IsoWeeksInYear 添加了 .isoWeeksInYear() API 以返回 number，以根据 ISO 周获取一年中的周数。

¥IsoWeeksInYear adds .isoWeeksInYear() API to return a number to get the number of weeks in year, according to ISO weeks.

This requires the IsLeapYear plugin to work 

var isoWeeksInYear = require("dayjs/plugin/isoWeeksInYear");
// import isoWeeksInYear from 'dayjs/plugin/isoWeeksInYear' // ES 2015

var isLeapYear = require("dayjs/plugin/isLeapYear"); // dependent on isLeapYear plugin
// import isLeapYear from 'dayjs/plugin/isLeapYear' // ES 2015

dayjs.extend(isoWeeksInYear);
dayjs.extend(isLeapYear);

dayjs("2004-01-01").isoWeeksInYear(); // 53
dayjs("2005-01-01").isoWeeksInYear(); // 52
← IsoWeekLocaleData →