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:-
// 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 console.log(B); |
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.
// 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
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