challenge06.js

// 6 - Closest to Zero | https://www.codewars.com/kata/59887207635904314100007b
function closestToZero(arr) {
  arr.sort((a, b) => a - b);
  let closest = arr[0];
  let distance = Math.abs(closest);
  for (let num of arr) {
    const currentDistance = Math.abs(num);
    if (currentDistance <= distance) {
      distance = currentDistance;
      closest = num;
    }
  }
  return closest;
}

console.log(closestToZero([2, 4, -1, -3])); // Output: -1
console.log(closestToZero([5, 2, -2]));     // Output: null
console.log(closestToZero([5, 2, 2]));       // Output: 2
console.log(closestToZero([13, 0, -6]));     // Output: 0