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) {
    if ( !Array.isArray(members) || members.length === 0  ) return false;
  
    members = members.filter(x => typeof x === 'string');
  
    members.forEach((x, i) => {
      let nameWithoutSpace = x.trim();
      members[i] = nameWithoutSpace[0].toUpperCase();
    })
  
    return members.sort().join('');
  }
  