JAVASCRIPT

reverse number javascript

// Function to reverse Number
function reverseNum(n) {
  let r = n.toString().split('').reverse().join('');
  return Math.sign(n) * parseInt(r);
}

// Call
reverseNum(-267);
reverseNum(31522);

// Outputs
-762
22513

how to reverse number in javascript

// how to reverse number in javascript
let number = 12345;
let reverse = parseInt(number.toString().split('').reverse().join(''));
console.log(reverse);
// Output:
// 54321

Reverse a number in JavaScript

let rev = 0;
let num = 123456;
let lastDigit;

while(num != 0){
	lastDigit = num % 10;
  rev = rev * 10 + lastDigit;
  num = Math.floor(num/10);
}

console.log("Reverse number : "+rev);

Reverse numbers from an array in javascript

const numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
const reverseNumbers = numbers.reverse();
console.log(reverseNumbers);

reverse int js

function reverseInt(n) {
  let reversed = n.toString().split("").reverse().join("");
  //from string to integer
  reversed = parseInt(reversed);

  if (n < 0) {
    return reversed * -1;
  }

  return reversed;
}

reverse a number in javascript

const num = 3849;

function reverseGivenInteger(num) {
    return Number(String(num).split('').reverse().join(''))
}

console.log(`Reversed integer is: ${reverseGivenInteger(num)}`)

Reverse Integer in JavaScript

/**
 * @param {number} x
 * @return {number}
 */
var reverse = function(x) {
    x = x + '';

    let reversedStr = x.split('').reverse().join('');
    
    if(reversedStr.includes('-')) {
        reversedStr = reversedStr.split('-')[0]
        reversedStr = '-'+reversedStr
    }
    if(2147483647 < reversedStr || -2147483648 > reversedStr) {
        return 0
    }
    return reversedStr
    
};

reverse int js

function reverseInt(n) {
  const reversed = n.toString().split("").reverse().join(""); 

  return parseInt(reversed) * Math.sign(n);
}

js reverse number

const reversedNum = num => parseFloat(num.toString().split('').reverse().join('')) * Math.sign(num)