!(function (e, t) {
    if ('object' == typeof exports && 'undefined' != typeof module) {
        module.exports = t();
    } else {
        if ('function' == typeof define && define.amd) {
            define(t);
        } else {
            (e = 'undefined' != typeof globalThis ? globalThis : e || self).dayjs_plugin_dayOfYear = t();
        }
    }
})(this, function () {
    'use strict';

    return function (e, t, n) {
        t.prototype.dayOfYear = function (e) {
            var t = Math.round((n(this).startOf('day') - n(this).startOf('year')) / 86400000) + 1;
            return null == e ? t : this.add(e - t, 'day');
        };
    };
});