Merge pull request #361 from brentguf/date-exercises

Date exercises

1-js/05-data-types/10-date/7-get-seconds-to-tomorrow/solution.md

@@ -13,3 +13,19 @@ function getSecondsToTomorrow() {
   return Math.round(diff / 1000); // convert to seconds
 }
 ```
+
+Alternative solution:
+
+```js run
+function getSecondsToTomorrow() {
+  let now = new Date();
+  let hour = now.getHours();
+  let minutes = now.getMinutes();
+  let seconds = now.getSeconds();
+  let totalSecondsToday = (hour * 60 + minutes) * 60 + seconds; 
+  let totalSecondsInADay = 86400;
+  
+  return totalSecondsInADay - totalSecondsToday;
+}
+
+```

1-js/05-data-types/10-date/8-format-date-relative/solution.md

@@ -43,3 +43,34 @@ alert( formatDate(new Date(new Date - 5 * 60 * 1000)) ); // "5 min. ago"
 // yesterday's date like 31.12.2016, 20:00
 alert( formatDate(new Date(new Date - 86400 * 1000)) );
 ```
+
+Alternative solution:
+
+```js run
+function formatDate(date) {
+  let dayOfMonth = date.getDate();
+  let month = date.getMonth() + 1;
+  let year = date.getFullYear();
+  let hour = date.getHours();
+  let minutes = date.getMinutes();
+  let diffMs = new Date() - date;
+  let diffSec = Math.round(diffMs / 1000);
+  let diffMin = diffSec / 60;
+  let diffHour = diffMin / 60;
+      
+  // formatting
+  year = year.toString().slice(-2);
+  month = month < 10 ? '0' + month : month;
+  dayOfMonth = dayOfMonth < 10 ? '0' + dayOfMonth : dayOfMonth;
+      
+  if (diffSec < 1) {
+    return 'right now';  
+  } else if (diffMin < 1) {
+    return `${diffSec} sec. ago`
+  } else if (diffHour < 1) {
+    return `${diffMin} min. ago`
+  } else {
+    return `${dayOfMonth}.${month}.${year} ${hour}:${minutes}`
+  }
+}
+```