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)) { return false}
  
    let result = '';
    members
      .filter(el => typeof el === 'string')
      .map(el => el.trim()[0].toUpperCase())
      .sort()
      .forEach(el => result += el)
  
    return result
  }
  
  