text: const { NotImplementedError } = require('../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'
   *
   */
  function createDreamTeam(members) {
    var arr = [];
    var i = 0;
  if(Array.isArray(members) === true){
    members.forEach(element => {
        if(typeof element === "string"){
           let elem = element.trim().toUpperCase();
           arr[i] = elem[0];
           i++;
        }else{
          return false;
        }
    });
      return arr.sort().join('');
  }else{return false};
  }
  
  module.exports = {
    createDreamTeam
  };
  