text: import { NotImplementedError } from '../extensions/index.js';
  
  /**
   * 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]
   */
  export default function sortByHeight(arr, pos = [], j = 0) {
    pos = arr.filter(i => i >= 0).sort((a, b) => a - b);
    for (let i = 0; i < arr.length; i++) {
      if (arr[i] > 0) {
        arr[i] = pos[j];
        j++;
      }
    }
    return arr;
  }