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Categories >> Software >> Scripts >> JavaScript


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Write a program  to check whether a given number is  a
palindrome or not?
 Question Submitted By :: JavaScript
I also faced this Question!!     Answer Posted By  
# 1
This Script checks the given number as well as string is palindrome or not

<script type="text/javascript">
function checkPalindrome() {
var revStr = "";
var str = document.getElementById("str").value;
var i = str.length;
for(var j=i; j>=0; j--) {
revStr = revStr+str.charAt(j);
if(str == revStr) {
alert(str+" -is Palindrome");
} else {
alert(str+" -is not a Palindrome");
<form >
Enter a String/Number: <input type="text" id="str" name="string" /><br />
<input type="submit" value="Check" onclick="checkPalindrome();"/>
Is This Answer Correct ?    148 Yes 28 No
# 2
Is This Answer Correct ?    27 Yes 11 No
# 3
<script language="Javascript">
var a;
<title> Number Palindrom </title>
<script Language="Javascript">
var rno=0;
var r=0;
var no = prompt("Enter First no: ","10");
var ono = parseInt(no);
while (no>0)
r = parseInt(no%10);
rno = parseInt((rno*10)+r);
no = parseInt(no/10);
if(rno == ono)
document.write(ono+" is palindrom number..");
document.write(ono +" is not palindrom number..");
Is This Answer Correct ?    15 Yes 7 No
# 4
num=InputBox ("Enter a number")
rem1=num mod 10
r=(r*10) + rem1


If (r=z)Then
Msgbox "Given no is palindrome"
Msgbox "Given no. is not palindrome"

End If
Is This Answer Correct ?    8 Yes 3 No
Sharma V
# 5
Is This Answer Correct ?    1 Yes 0 No

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For more JavaScript Interview Questions Click Here 

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