Reverse an Int

Instructions:

• Given an integer, return an integer that is the reverse ordering of numbers.

Examples:

• reverseInt(15) === 51

• reverseInt(981) === 189

• reverseInt(500) === 5

• reverseInt(-15) === -51

• reverseInt(-90) === -9

Repl.it:

• reverse_an_int

Code:

function reverseInt(int) {
  const reversed = int
    .toString()
    .split('')
    .reverse()
    .join('');
  // Math.sing returns
  // 1 if (int) is positive
  // -1 if is negative
  // 0 if is 0
  return parseInt(reversed) * Math.sign(int);
}