JavaScript Date setFullYear() Method

The date.setFullYear() method is used to set year into a date object which is created using Date() constructor. 

Syntax:

DateObj.setFullYear(year_Value)

Parameter: This method accepts a single parameter as mentioned above and described below:

• year_Value: This parameter holds the value of year which is used to set in Date() constructor.

Return Value: It returns the new date with the updated year which is set by setFullYear() method. 

Note: The DateObj is a valid Date object created using Date() constructor in which we want to set the year. More codes for the above method are as follows:

Example 1:

HTML

<script>
    // Here a date has been assigned
    // while creating Date object
    var dateobj =
    new Date('October 13, 1996 05:35:32');

    // New year 1992 is being set in above Date
    // Object with the help of setFullYear() method
    dateobj.setFullYear(1992);

    // New year from above Date Object is
    // being extracted using getFullYear()
    var B = dateobj.getFullYear();

    // Printing new year
    console.log(B);
</script>

Output:

1992

Example 2: If in Date() constructor we do not give any year, still setFullYear() method set a new year which is given as its parameter. 

HTML

<script>
    // Here year has not been assigned
    // while creating Date object
    var dateobj =
    new Date('October 13, 05:35:32');

    // new year 1992 is being set in above Date
    // Object with the help of setFullYear() method
    dateobj.setFullYear(1992);

    // New year from above Date Object is
    // being extracted using getFullYear()
    var B = dateobj.getFullYear();

    // Printing new year
    console.log(B);
</script>

Output:

1992

Example 3: If nothing as a parameter is given in Date() constructor, still setFullYear() method set year but month and date become current ones. Here in output 2 is the month of March because the month name start from 0 to 11 i.e, 0 for January and 11 for December, and 30 is the current date. 

HTML

<script>
    // Here nothing has been assigned
    // while creating Date object
    var dateobj = new Date();

    // new year 2007 is being set in above Date
    // Object with the help of setFullYear() method
    dateobj.setFullYear(2007);

    // Year from above Date Object is
    // being extracted using getFullYear()
    var B = dateobj.getFullYear();

    // Month from above Date Object is
    // being extracted using getMonth()
    var C = dateobj.getMonth();

    // Date from above Date Object is
    // being extracted using getDate()
    var D = dateobj.getDate();

    // Printing new year
    console.log(B);

    // Printing current month
    console.log(C);

    // Printing current date
    console.log(D);
</script>

Output:

2007
2
30

We have a complete list of Javascript Date Objects, to check those please go through this Javascript Date Object Complete reference article.

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

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

We have a Cheat Sheet on Javascript where we covered all the important topics of Javascript to check those please go through Javascript Cheat Sheet-A Basic guide to JavaScript.