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Leap Year in JavaScript

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Submitted on: 11/16/2015 12:57:15 PM
By: Jake R. Pomperada  
Level: Beginner
User Rating: Unrated
Compatibility: JavaScript
Views: 806
author picture
 
     A simple program that I wrote using HTML form and JavaScript to check if the given year of the user is leap year or not a leap year. If you have some questions please send me an email at jake.r.pomperada@gmail.com and jakerpomperada@yahoo.com. My mobile number here in the Philippines is 09173084360.

 
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'**************************************
' Name: Leap Year in JavaScript
' Description:A simple program that I wrote using HTML form and JavaScript to check if the given year of the user is leap year or not a leap year.
If you have some questions please send me an email at jake.r.pomperada@gmail.com and jakerpomperada@yahoo.com. 
My mobile number here in the Philippines is 09173084360.
' By: Jake R. Pomperada
'**************************************

<html>
<style>
body,p {
 font-family:arial;
 font-size:16px;
 }
</style> 
<body>
<h3> Leap Year Checker </h3>
<br/>Enter a Year
<input type="text" id="num_value" name="num_value" size="5">
<br><br>
<button onclick="check_year()">Check Year</button>
<br><br>
<p id="demo"></p>
<script>
 function check_year() {
var year= document.getElementById("num_value").value;
if(year%4 == 0)
 {
 if( year%100 == 0) /* Checking for a century year */
 {
 if ( year%400 == 0)
 result = year + " is a Leap Year.";
 else
result = year +" is not a Leap Year.";
 }
 else
 result = year + " is a Leap Year.";
 }
 else
 result = year +" is not a Leap Year.";
 document.getElementById("demo").innerHTML = result;
 }
</script>
</body>
</html>


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