text: import { NotImplementedError } from '../extensions/index.js';
  
  /**
   * Create name of dream team based on the names of its members
   *  
   * @param {Array} members names of the members 
   * @return {String | Boolean} name of the team or false
   * in case of incorrect members
   *
   * @example
   * 
   * createDreamTeam(['Matt', 'Ann', 'Dmitry', 'Max']) => 'ADMM'
   * createDreamTeam(['Olivia', 1111, 'Lily', 'Oscar', true, null]) => 'LOO'
   *
   */
  export default function createDreamTeam(members) {
    //throw new NotImplementedError('Not implemented');
    // remove line with error and write your code here
  let array = [];
  if (members === null || members === undefined){
    return false;
  } 
  for (let i = 0; i < members.length; i++) {
    if (typeof(members[i]) === 'string'){
      if (members[i].trim().length > 0){
        let str = members[i].trim();
        array.push(str[0].toUpperCase());
      }
    }
  }
  if ( ! array.length) return false;
  
  return array.sort().join('');
  }
  