getUserFriends.ts

// Before
function getUserFriends(state): Friends[] {
  return state.me.friends;
}

// After
function getUserFriends(state): Friends[] {
  const friends = [];
  
  // Please never do this; it's only to illustrate the point
  for (let count = state.me.friendCount; i <= state.me.friendCount; i++) {
    friends.push(state.me[`friend-${count}`]);
  }
  
  return friends;
}