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palindrome-algorithm.ts
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palindrome-algorithm.ts
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// Given an integer x, return true if x is a
// palindrome
// , and false otherwise.
// Example 1:
// Input: x = 121
// Output: true
// Explanation: 121 reads as 121 from left to right and from right to left.
// Example 2:
// Input: x = -121
// Output: false
// Explanation: From left to right, it reads -121. From right to left, it becomes 121-. Therefore it is not a palindrome.
// Example 3:
// Input: x = 10
// Output: false
// Explanation: Reads 01 from right to left. Therefore it is not a palindrome.
// Constraints:
// -231 <= x <= 231 - 1
// Follow up: Could you solve it without converting the integer to a string?
//More examples for me
//madam
//121
//101
//aba
//202
//..
function isPalindrome(x: number): boolean {
if (x < 0 || (x % 10 === 0 && x !== 0)) return false;
let reversedValue = x.toString().split("").reverse().join("");
return x === parseInt(reversedValue) ? true : false;
}
console.log(isPalindrome(120));