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) {
    return (Array.isArray(members))
            ? members.filter(el => typeof el == 'string').map(el => el.trim()[0].toUpperCase()).sort().join('')
            : false;
  }
  