javascript - 如何使用javascript为给定日期添加年份

Question

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

Answer 1

试试这个:

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;