Question

I tried validating date with the following code:-

    function d(id){
 var n= document.getElementById(id);
 var re=/^(?:(0[1-9]|1[012])[\- \/.](0[1-9]|[12][0-9]|3[01])[\- \/.](19|20)[0-9]{2})$/;
  if (re.test(n.value))
  {
     n.style.backgroundColor="#52F40C";

  }
  else
  {
    window.alert("Invalid date");
               n.style.backgroundColor="#F40C0C";
               n.focus();
               n.value="";

  }
}

But it isn’t working. What is the problem with this code?

Answer 1

try this

 function isValidDate(subject){
  if (subject.match(/^(?:(0[1-9]|1[012])[\- \/.](0[1-9]|[12][0-9]|3[01])[\- \/.](19|20)[0-9]{2})$/)){
    return true;
  }else{
    return false;
  }
}