w3resource

CoffeeScript: Calculate number of days left until next Christmas

CoffeeScript : Exercise-7 with Solution

Write a CoffeeScript program to calculate days left until next Christmas.

HTML Code :

<!DOCTYPE html>
<html>
<head>
<script src="//jashkenas.github.io/coffee-script/extras/coffee-script.js"></script>
  <meta charset="utf-8">
  <title>Calculate number of days left until next Christmas</title>
</head>
<body>

</body>
</html>

CoffeeScript Code :

today = new Date
cmas = new Date(today.getFullYear(), 11, 25)
if today.getMonth() == 11 and today.getDate() > 25
  cmas.setFullYear cmas.getFullYear() + 1
one_day = 1000 * 60 * 60 * 24
console.log Math.ceil((cmas.getTime() - today.getTime()) / one_day) + ' days left until Christmas!'

Sample Output:

"280 days left until Christmas!"

Live Demo :

See the Pen coffeescript-exercise-7 by w3resource (@w3resource) on CodePen.


Improve this sample solution and post your code through Disqus.