JavaScript: Get the number of days in a month
JavaScript Datetime: Exercise-3 with Solution
Write a JavaScript function to get the number of days in a month.
Test Data:
console.log(getDaysInMonth(1, 2012));
console.log(getDaysInMonth(2, 2012));
console.log(getDaysInMonth(9, 2012));
console.log(getDaysInMonth(12, 2012));
Output :
31
29
30
31
Sample Solution:-
HTML Code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Get days in Month</title>
</head>
<body>
</body>
</html>
JavaScript Code:
var getDaysInMonth = function(month,year) {
// Here January is 1 based
//Day 0 is the last day in the previous month
return new Date(year, month, 0).getDate();
// Here January is 0 based
// return new Date(year, month+1, 0).getDate();
};
console.log(getDaysInMonth(1, 2012));
console.log(getDaysInMonth(2, 2012));
console.log(getDaysInMonth(9, 2012));
console.log(getDaysInMonth(12, 2012));
Sample Output:
31 29 30 31
Flowchart:

Live Demo:
See the Pen JavaScript - Get the number of days in a month-date-ex- 3 by w3resource (@w3resource) on CodePen.
Improve this sample solution and post your code through Disqus
Previous: Write a JavaScript function to get the current date.
Next: Write a JavaScript function to get the month name from a particular date.
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