Question

I want to increment the year-value of a given date, but this goes wrong.

this is my code:

var endDate = entry.start;
endDate.setDate(endDate.getFullYear() + 5);

and for comparison the output (console.log) is:

Date {Thu Jun 30 2011 11:30:10 GMT+0200}

Date {Tue Dec 06 2016 11:30:10 GMT+0100}

as you can see, it also incremented the month and Day.
What am I missing?
thanks in advance

Answer 1

You have to set the year only, using the setYear method:

endDate.setYear(endDate.getFullYear() + 5);

Using setDate(getFullYear()+5) you add 5 + (year of the date) days to the date value of endDate