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) {
    for(let i=0;i<arr.length;i+=1){
      if(arr[i]>=0){
       for(let j=i+1;j<arr.length;j+=1){
          if(arr[j]>=0){
            if(arr[i]>arr[j]){
              let min=arr[j]
              arr[j]=arr[i]
              arr[i]=min
            }
          }
        }
      }
  
    }
    return arr
  }
  