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JavaScript Date getFullYear() Method

  • Last Updated : 12 Oct, 2021

Below is the example of Date getFullYear() method. 
 

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  • Example: 
     

javascript




<script>
  // Here a date has been assigned
  // while creating Date object
  var dateobj = new Date('October 15, 1996 05:35:32');
 
  // year from above date object is
  // being fetched using getFullYear().
  var B = dateobj.getFullYear();
 
  // Printing year
  document.write(B);
</script>
  • Output: 
     
1996

The date.getFullYear() method is used to fetch the year from a given Date object.
Syntax: 
 

DateObj.getFullYear()

Parameter: This function does not accept any parameters.
Return Values: It returns the year for the given date.
More codes for the above method are as follows: 
Program 1: If nothing as parameter is given to the Date() constructor, then the getFullYear() function returns current year. 
 

javascript




<script>
  // Creating Date Object
  var dateobj = new Date();
 
  // year from above object
  // is being fetched using getFullYear().
  var B = dateobj.getFullYear();
   
  // Printing current year
  document.write(B);
</script>

Output: 
 



2018

Program 2: The date of the month must lie between 1 to 31 because a month cannot have more than 31 days. That is why it returns NaN i.e, not a number because the date for the month does not exist. Hence, Year will not exist when the date of the month is set as 45 or any number which does not lie between 1 to 31.
 

javascript




<script>
  // Here a date has been assigned
  // while creating Date object
  var dateobj = new Date('October 45, 1996 05:35:32');
 
  // year from above date object is
  // being fetched using getFullYear().
  var B = dateobj.getFullYear();
 
  // Printing year
  document.write(B);
</script>

Output: 
 

NaN

Program 3: It has applications such as getting current year.It is used in websites to validate the age of the user. 
 

javascript




<script>
  // Creating Date Object
  var dateobj = new Date();
 
  // Year from above object
  // is being fetched using getFullYear()
  var B = dateobj.getFullYear();
 
  // Printing current year
  document.write(B);
</script>

Output: 
 

2018

Supported Browsers: The browsers supported by JavaScript Date getFullYear() method are listed below: 
 

  • Google Chrome 1 and above
  • Edge 12 and above
  • Firefox 1 and above
  • Internet Explorer 4 and above
  • Opera 4 and above
  • Safari 1 and above

 




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