Contents

function MeetupDayException(message) {
  this.message = message;
  this.name = 'MeetupDayException';
}

function meetupDay (year, month, day_of_week, which) {
  'use strict';

  var candidates = _getCandidates(year, month, day_of_week),
      d,
      i,
      res;
  which = which.toLowerCase();

  if (which === 'teenth') {
    res = _find(candidates, function (d) {
      return 13 <= d.getDate() && d.getDate() <= 19;
    });
  }
  else if (which === 'last') {
    res = candidates.pop();
  }
  else {
    which = parseInt(which) - 1;
    res = candidates.slice(which, which + 1).pop();
  }

  if (!res) { throw new MeetupDayException('Day not found! ;_;'); }

  return res;
}

function _getCandidates (year, month, day_of_week) {
  var d,
      i,
      numDaysInMonth = new Date(year, month + 1, 0).getDate(),
      res = [];

  for (i = 0; i < numDaysInMonth; i++) {
    d = new Date(year, month, i + 1);

    if (d.getDay() === _getDayIndex(day_of_week)) {
      res.push(d);
    }
  }

  return res;
}

function _getDayIndex (day) {
  var daysInd = {
    'sunday': 0,
    'monday': 1,
    'tuesday': 2,
    'wednesday': 3,
    'thursday': 4,
    'friday': 5,
    'saturday': 6
  };

  day = day.toLowerCase();

  return daysInd[day];
}

function _find(ary, callback) {
  for (var i = 0; i < ary.length; i++) {
    if (callback(ary[i], i, ary)) { return ary[i]; }
  }
}

module.exports = meetupDay;

Version data entries

255 entries across 255 versions & 1 rubygems

Version	Path
trackler-2.2.1.37	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.36	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.35	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.34	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.33	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.32	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.31	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.30	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.29	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.28	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.27	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.26	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.25	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.24	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.23	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.22	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.21	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.20	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.19	tracks/javascript/exercises/meetup/example.js
trackler-2.2.1.18	tracks/javascript/exercises/meetup/example.js