weekOfYear · Day.js

WeekOfYear 增加了 .week() API 返回一个 number 来表示 Day.js 的日期是年中第几周。

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

dayjs.extend(weekOfYear);

dayjs("2018-06-27").week(); // 26
dayjs("2018-06-27").week(5); // set week