JavaScript: Check whether an input is a date object or not

Last update on August 19 2022 21:50:50 (UTC/GMT +8 hours)

JavaScript Datetime: Exercise-1 with Solution

Write a JavaScript function to check whether an 'input' is a date object or not.

Test Data:
console.log(is_date("October 13, 2014 11:13:00"));
console.log(is_date(new Date(86400000)));
console.log(is_date(new Date(99,5,24,11,33,30,0)));
console.log(is_date([1, 2, 4, 0]));
Output :
false
true
true
false

Sample Solution:-

HTML Code:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Checking a date object</title>
</head>
<body>
</body>
</html>

JavaScript Code:

var is_date = function(input) {
  if ( Object.prototype.toString.call(input) === "[object Date]" ) 
    return true;
  return false;   
    };

console.log(is_date("October 13, 2014 11:13:00"));
console.log(is_date(new Date(86400000)));
console.log(is_date(new Date(99,5,24,11,33,30,0)));
console.log(is_date([1, 2, 4, 0]));

Sample Output:

false
true
true
false

Flowchart:

Live Demo:

See the Pen JavaScript - common-editor-exercises-date-ex- 1 by w3resource (@w3resource) on CodePen.

Improve this sample solution and post your code through Disqus

Previous: Javascript date Exercises
Next: Write a JavaScript function to get the current date.