likes-customizable.js

// We ran out of time, but here's one way we could have refactored our code if we wanted it to be more customizable
// Line 17 uses a ternary operator, which is somethign we'll be using more and more going forward!

function likes(names) {
  
  let verb = "like";
  if(names.length < 2) verb += "s";
  
  nameList = names[0];
  if(names.length === 0) {
    nameList = "no one"
  }
  else if(names.length === 2) {
    nameList += " and " + names[1];
  }
  else if(names.length > 2) {
    let others = (names.length > 3) ? (names.length - 2) + " others" : names[2];
    nameList += ", " + names[1] + " and " + others;
  }
  
  return nameList + " " + verb + " this";
}

likes-with-ifs.js

function likes(names) {
  
  if(names.length === 0) {
    return "no one likes this";
  }
  
  if(names.length === 1) {
    return names[0] + " likes this";
  }
  
  if(names.length === 2) {
    return names[0] + " and " + names[1] + " like this";
  }
    
  if(names.length === 3) {
    return names[0] + ", " + names[1] + " and " + names[2] + " like this"
  }
  
  return names[0] + ", " + names[1] + " and " + (names.length - 2) + " others like this"
}

likes-with-switch.js

function likes(names) {
  switch(names.length) {
      case 0:
        return "no one likes this";
      case 1:
        return names[0] + " likes this";
      case 2:
        return names[0] + " and " + names[1] + " like this";
      case 3:
        return names[0] + ", " + names[1] + " and " + names[2] + " like this"
      default:
        return names[0] + ", " + names[1] + " and " + (names.length - 2) + " others like this"
  }
}