Palindrome in JavaScript (example 212,3443 )

Write a program to accept a no. from user and check whether Palindrome or not.




Enter A Number:



<HTML>
<HEAD><title>Palindrome by kbkashid</title>
<script language='JavaScript'>
 function chkpalindrome()
   {
    var temp,rev=0
    var no=parseInt(frm.t1.value)
    temp=no
    while(no>0)
      {
        rev=(rev*10)+(no%10)
        no=Math.floor(no/10)
      }  
     if(rev==temp)
       alert(temp +" Is Palindrome")
     else
     alert(temp + " Is Not Palindrome")
     

   }
 </script>
</HEAD>
<BODY><form name=frm>
Enter A Number:<input type=text name=t1 /><input type=button value='Is Palindrome' onclick="chkpalindrome();">
</form>
</BODY>
</HTML>

3 comments:

  1. is it possible to check the number is palindrome or not without math.floor.my code is some thing like this

    ReplyDelete
  2. try no = no.split('').reverse().join();
    if true than it is palidrome

    ReplyDelete

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