whoLikesit?.js

// Implement the function which takes an array containing the names of people that like an item. It must return the display text as shown in the examples:

// []                                -->  "no one likes this"
// ["Peter"]                         -->  "Peter likes this"
// ["Jacob", "Alex"]                 -->  "Jacob and Alex like this"
// ["Max", "John", "Mark"]           -->  "Max, John and Mark like this"
// ["Alex", "Jacob", "Mark", "Max"]  -->  "Alex, Jacob and 2 others like this"
likes = names => {
  let response = '';
  if (names.length === 0) {
    response += 'no one likes this';
  } else if (names.length === 1) {
    response += `${names[0]} likes this`;
  } else if (names.length === 2) {
    response += `${names[0]} and ${names[1]} like this`;
  } else if (names.length === 3) {
    response += `${names[0]}, ${names[1]} and ${names[2]} like this`;
  } else if (names.length > 3) {
    response += `${names[0]}, ${names[1]} and ${names.length - 2} others like this`;
  }
  return response;
}