JavaScript | date.getDate() Function

The date.getDate() is an inbuilt function in JavaScript which is used to fetch the date of a month from a given Date object.

Syntax:

DateObj.getDate()

In the above syntax, DateObj is a valid Date object created using Date() conctructor from which we want to fetch date.

Parameter: This function does not takes any parameter. It is just used along with a Date Object from which we want to fetch the date of the month.

Return values: It returns the date of the month for the given date.The date of the month is an integer value ranging from 1 to 31.

Below program illustrate the getDate() method:-
Example:

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<script>
  // Here a date has been assigned
  // while creating Date object
  var dateobj = new Date('October 13, 1996 05:35:32');
  
  // date of the month from above Date Object is
  // being extracted using getDate()
  var B = dateobj.getDate();
  
  // Printing date of the month
  document.write(B);
</script>

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Output:

13

Errors and Exceptions:

  • Example1: The date of the month should must lie in between 1 to 31 because none of the month have date greater than 31 that is why it returns NaN i.e, not a number because date for the month does not exist.
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    <script>
      // Here a date has been assigned
      // while creating Date object
      var dateobj = new Date('October 33, 1996 05:35:32');
      
      // date of the month given above date object
      // is being extracted using getDate().
      var B = dateobj.getDate();
      
      // Printing date of the month.
      document.write(B);
    </script>

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    Output:

    NaN
  • Example 2: If date of the month is not given, by default it returns 1. It is an exception case.
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    <script>
      // Here a date has been assigned
      // while creating Date object
      var dateobj = new Date('October 1996 05:35:32');
      
      // date of the month from above date object
      // is extracted using getDate()
      var B = dateobj.getDate();
      
      // Printing date of the month
      document.write(B);
    </script>

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    Output:

    1
  • Example 3: If nothing as parameter is given to the Date constructor, then the function returns current date of the month.
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    <script>
      // Creating Date Object
      var dateobj = new Date();
      
      // date of the month from above object
      // is being extracted using getDate().
      var B = dateobj.getDate();
       
      // Printing current date
      document.write(B);
    </script>

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    Output:

    21

Application: It has many applications such as getting current date of the month. Below program shows one of the application of this function. It gives the current Date of the month.

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<script>
  // Creating Date Object
  var dateobj = new Date();
  
  // date of the month from above object
  // is being extracted using getDate().
  var B = dateobj.getDate();
  
  // Printing current date.
  document.log(B);
</script>

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Output:

21

Supported Browsers: The browsers supported by JavaScript date.getDate() Function are listed below:

  • Google Chrome
  • Internet Explorer
  • Firefox
  • Opera
  • Safari


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