my LeetCode Reverse Integer solution

ReverseInteger.js

/*
Given a signed 32-bit integer x, return x with its digits reversed. If reversing x causes the value to go outside the signed 32-bit integer range [-231, 231 - 1], then return 0. Assume the environment does not allow you to store 64-bit integers (signed or unsigned).

Examples :: 
1. Input: x = 123, Output: 321
2. Input: x = -123, Output: -321
3. Input: x = 120, Output: 21

//you could spread a string to an array.. rather than splitting it. 

//solution...  */

var reverse = function(x) {
  let z = (x < 0) ? true : false;
  let v = [...Math.abs(x).toString()].reverse().join('');
  return Number(z ? ['-', ...v].join('') : v);
}