September 2017 Update

Task/Discordian-date/JavaScript/discordian-date-1.js

@@ -1,72 +1,118 @@
 /**
  * All Hail Discordia! - this script prints Discordian date using system date.
- * author: jklu, lang: JavaScript
+ *
+ * lang: JavaScript
+ * author: jklu
+ * contributors: JamesMcGuigan
+ *
+ * changelog:
+ * - Modified to return same output syntax as unix ddate + module.exports - James McGuigan, 2/Chaos/3183
+ *
+ * source: https://rosettacode.org/wiki/Discordian_date#JavaScript
  */
-var seasons = ["Chaos", "Discord", "Confusion",
-  "Bureaucracy", "The Aftermath"];
-var weekday = ["Sweetmorn", "Boomtime", "Pungenday",
-  "Prickle-Prickle", "Setting Orange"];
+var seasons = [
+  "Chaos", "Discord", "Confusion",
+  "Bureaucracy", "The Aftermath"
+];
+var weekday = [
+  "Sweetmorn", "Boomtime", "Pungenday",
+  "Prickle-Prickle", "Setting Orange"
+];
 
-var apostle = ["Mungday", "Mojoday", "Syaday",
-  "Zaraday", "Maladay"];
+var apostle = [
+  "Mungday", "Mojoday", "Syaday",
+  "Zaraday", "Maladay"
+];
 
-var holiday = ["Chaoflux", "Discoflux", "Confuflux",
-  "Bureflux", "Afflux"];
+var holiday = [
+  "Chaoflux", "Discoflux", "Confuflux",
+  "Bureflux", "Afflux"
+];
 
 
 Date.prototype.isLeapYear = function() {
   var year = this.getFullYear();
-  if ((year & 3) !== 0) return false;
+  if( (year & 3) !== 0 ) { return false; }
   return ((year % 100) !== 0 || (year % 400) === 0);
 };
 
 // Get Day of Year
 Date.prototype.getDOY = function() {
-  var dayCount = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334];
-  var mn = this.getMonth();
-  var dn = this.getDate();
+  var dayCount  = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334];
+  var mn        = this.getMonth();
+  var dn        = this.getDate();
   var dayOfYear = dayCount[mn] + dn;
-  if (mn > 1 && this.isLeapYear()) dayOfYear++;
+  if( mn > 1 && this.isLeapYear() ) { dayOfYear++; }
   return dayOfYear;
 };
 
-function discordianDate(date) {
-  var y = date.getFullYear();
-  var yold = y + 1166;
-  var dayOfYear = date.getDOY();
+Date.prototype.isToday = function() {
+  var today = new Date();
+  return this.getDate()     === today.getDate()
+      && this.getMonth()    === today.getMonth()
+      && this.getFullYear() === today.getFullYear()
+  ;
+};
 
-  if (date.isLeapYear()) {
-    if (dayOfYear == 60)
-      return "St. Tib's Day, in the YOLD " + yold;
-    else if (dayOfYear > 60)
+function discordianDate(date) {
+  if( !date ) { date = new Date(); }
+
+  var y                = date.getFullYear();
+  var yold             = y + 1166;
+  var dayOfYear        = date.getDOY();
+  var celebrateHoliday = null;
+
+  if( date.isLeapYear() ) {
+    if( dayOfYear == 60 ) {
+      celebrateHoliday = "St. Tib's Day";
+    }
+    else if( dayOfYear > 60 ) {
       dayOfYear--;
+    }
   }
   dayOfYear--;
 
-  var divDay= Math.floor(dayOfYear/73);
+  var divDay = Math.floor(dayOfYear / 73);
 
   var seasonDay = (dayOfYear % 73) + 1;
-  if (seasonDay == 5)
-    return apostle[divDay] + ", in the YOLD " + yold;
-  if (seasonDay == 50)
-    return holiday[divDay] + ", in the YOLD " + yold;
+  if( seasonDay == 5 ) {
+    celebrateHoliday = apostle[divDay];
+  }
+  if( seasonDay == 50 ) {
+    celebrateHoliday = holiday[divDay];
+  }
 
-  var season = seasons[divDay];
+  var season    = seasons[divDay];
   var dayOfWeek = weekday[dayOfYear % 5];
 
-  return dayOfWeek + ", day " + seasonDay + " of " +
-    season + " in the YOLD " + yold;
+  var nth = (seasonDay % 10 == 1) ? 'st'
+          : (seasonDay % 10 == 2) ? 'nd'
+          : (seasonDay % 10 == 3) ? 'rd'
+                                  : 'th';
+
+  return "" //(date.isToday() ? "Today is " : '')
+         + dayOfWeek
+         + ", the " + seasonDay + nth
+         + " day of " + season
+         + " in the YOLD " + yold
+         + (celebrateHoliday ? ". Celebrate " + celebrateHoliday + "!" : '')
+    ;
 }
 
 function test(y, m, d, result) {
-  console.assert((discordianDate(new Date(y, m, d)) == result), result);
+  console.assert((discordianDate(new Date(y, m, d)) == result), [y, m, d, discordianDate(new Date(y, m, d)), result]);
 }
 
-console.log(discordianDate(new Date(Date.now())));
-test(2010, 6, 22, "Pungenday, day 57 of Confusion in the YOLD 3176");
-test(2012, 1, 28, "Prickle-Prickle, day 59 of Chaos in the YOLD 3178");
-test(2012, 1, 29, "St. Tib's Day, in the YOLD 3178");
-test(2012, 2, 1, "Setting Orange, day 60 of Chaos in the YOLD 3178");
-test(2010, 0, 5, "Mungday, in the YOLD 3176");
-test(2011, 4, 3, "Discoflux, in the YOLD 3177");
-test(2015, 9, 19, "Boomtime, day 73 of Bureaucracy in the YOLD 3181");
+// Only run test code if node calls this file directly
+if( require.main === module ) {
+  console.log(discordianDate(new Date(Date.now())));
+  test(2010, 6, 22, "Pungenday, the 57th day of Confusion in the YOLD 3176");
+  test(2012, 1, 28, "Prickle-Prickle, the 59th day of Chaos in the YOLD 3178");
+  test(2012, 1, 29, "Setting Orange, the 60th day of Chaos in the YOLD 3178. Celebrate St. Tib's Day!");
+  test(2012, 2,  1, "Setting Orange, the 60th day of Chaos in the YOLD 3178");
+  test(2010, 0,  5, "Setting Orange, the 5th day of Chaos in the YOLD 3176. Celebrate Mungday!");
+  test(2011, 4,  3, "Pungenday, the 50th day of Discord in the YOLD 3177. Celebrate Discoflux!");
+  test(2015, 9, 19, "Boomtime, the 73rd day of Bureaucracy in the YOLD 3181");
+}
+
+module.exports = discordianDate;

Task/Discordian-date/JavaScript/discordian-date-2.js

@@ -1,2 +1,2 @@
 console.log(discordianDate(new Date(Date.now())));
-"Prickle-Prickle, day 47 of The Aftermath in the YOLD 3181"
+"Boomtime, the 2nd day of Chaos in the YOLD 3183"