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 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:-

Output:

13

Errors and Exceptions:

• Code #1: 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.

  // 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. console.log(B);

  Output:

  NaN

• Code #2: If date of the month is not given, by default it returns 1. It is an exception case.

  // 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 console.log(B);

  Output:

  1

• Code #3: If nothing as parameter is given to the Date constructor, then the function returns current date of the month.

  // 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 console.log(B);

  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.

Output:

21