HTML + JavaScript Date Setters funciton setting differnt date other than the input -


consider following code of html & javascript

<!doctype html> <html> <body>     <script>         var str = "20990229";         var showdate = new date();         showdate.setfullyear(str.substring(0, 4))         showdate.setmonth(parseint(str.substring(4, 6), 10) - 1)         showdate.setdate(str.substring(6, 8))         document.write(showdate)     </script> </body> </html>

output:

fri mar 01 2099 16:02:52 gmt+0530 (india standard time)

the output not correct one, going wrong not known.

could tell me going wrong?

the output should be:

var str = "20990229"; var showdate = new date();  showdate.setfullyear(str.substring(0, 4)); // set year 2099 showdate.setmonth(parseint(str.substring(4, 6), 10) - 1); // set month 1 showdate.setdate(str.substring(6, 8)); // set date 29

that 29th february 2099. (note months indexed 0).

since 2099 not leap year there no february 29th, , date corresponds march 1st.

if change year 1 leap year (such 2096) output expect. here's an example.


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