text: /**
   * Given an array with heights, sort them except if the value is -1.
   *
   * @param {Array} arr
   * @return {Array}
   *
   * @example
   * arr = [-1, 150, 190, 170, -1, -1, 160, 180]
   *
   * The result should be [-1, 150, 160, 170, -1, -1, 180, 190]
   */
  function sortByHeight(arr) {
    let index = 0;
    const arrCopy = arr;
    const arrPositive = arr.filter((elem) => elem !== -1).sort((a, b) => a - b);
    for (let i = 0; i < arr.length; i++) {
      if (arr[i] !== -1) {
        arrCopy[i] = arrPositive[index];
        index++;
      }
    }
    return arrCopy;
  }
  
  module.exports = sortByHeight;
  