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<!DOCTYPE html> <html lang="en-US"> <body> <h1>JS Palindrome Number</h1> <script> var num = 121; var copyNum = num; var reverse = 0; //reverse a number while(copyNum != 0) { reverse = reverse * 10; reverse = reverse + (copyNum % 10); copyNum = Math.floor(copyNum / 10); } //result if (num == reverse) document.write(num +" is a palindrome number"); else document.write(num +" is not a palindrome number"); </script> </body> </html>
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