i need to add a year to given date. I have try this code
<script>
function get_expir(){
regDate = document.getElementById('txt1').value;
var da = new Date(regDate);
da.setFullYear(da.getFullYear()+1, da.getMonth()+1);
document.form1.txt2.value = da.getFullYear()+ '-'+ da.getMonth()+ '-'+ da.getDate();
}
</script
if the user input is '2012-02-29' then the output will comes '2013-2-29'. Blockquote
Try this :
var da = new Date(regDate);
da.setFullYear(da.getFullYear()+1);
var curr_date = ("0" + (da.getDate())).slice(-2)
var curr_month = ("0" + (da.getMonth() + 1)).slice(-2)
var curr_year = da.getFullYear();
document.form1.txt2.value = curr_date + "-" + curr_month + "-" + curr_year;
regDate is Feb, da.getMonth() gives you 2. We append a 0 before da.getMonth() to get 2. ie, "0" + da.getMonth() will now give you 02. slice(-2) says, take the last 2 characters of the given string. ie, ("02").slice(-2) gives "02" itself. Now lets say, the month in regDate is Dec. da.getMonth() gives you 12. We append a 0 before da.getMonth() to get 012. ie, "0" + da.getMonth() will now give you 012. slice(-2) says, take the last 2 characters of the given string. ie, ("012").slice(-2) gives "12".It would help if you are more clear in expaining the question .From what i understood , you want to increase the year but according to your code you are increasing the month as well. this is thee correction you need to make:
da.setFullYear(da.getFullYear()+1, da.getMonth());
var da = new Date(regDate);
da.setFullYear();
da.setMonth();
I you want to format the output then:
(new Date(Date.UTC(da.getFullYear()+1, da.getMonth() + 1, da.getDay(), 0, 0, 0))).toISOString().replace(/T.*Z$/, '');
Notice that I made everything in one line but for clarity those steps should be on different lines
var strDate =document.getElementById('txt1').value
var array = strDate .split('-');
var newDate= (parseInt(array[0])+1)+"-"+array[1]+"-"+array[2];
try this,you may refer this jsfiddle experimentation http://jsfiddle.net/z1rx1djf/
