denet-node-server/node_modules/dayjs/esm/plugin/dayOfYear/index.js

export default (function (o, c) {
  var proto = c.prototype;

  proto.dayOfYear = function (input) {
    var dayOfYear = Math.round((this.startOf('day') - this.startOf('year')) / 864e5) + 1;
    return input == null ? dayOfYear : this.add(input - dayOfYear, 'day');
  };
});