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DayOfYear

DayOfYear adds .dayOfYear() API to returns a number indicating the Dayjs's day of the year, or to set the day of the year.

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

dayjs.extend(dayOfYear);

dayjs("2010-01-01").dayOfYear(); // 1
dayjs("2010-01-01").dayOfYear(365); // 2010-12-31
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