FAQ: The Effect Hook - Separate Hooks for Separate Effects

This community-built FAQ covers the “Separate Hooks for Separate Effects” exercise from the lesson “The Effect Hook”.

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This exercise can be found in the following Codecademy content:

Learn React

FAQs on the exercise Separate Hooks for Separate Effects

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Note:
I have reported a bug. My code below was “passed” as valid from the existing “tests” installed in the dependency files. My code below is WRONG. The app did not work even though my code passed all the tests. So, I did find the errors by comparing my code to the solution and suggest if your app is not working you might compare your answer side by side to the solution to discover the simple fix. You can see in my code below the incorrect syntax was used for the setters.

setMenu(menuResponse.data);
setNewsFeed(newsFeedResponse.data);
setFriends(friendsResponse.data);

should have been

setMenu(response.data);
setNewsFeed(response.data);
setFriends(response.data);
//mine is different than the given solution but the Codecademy solution checker doesn't catch the mistakes. 
//you must compare to the solution to see your mistakes from this point.  
import React, { useState, useEffect } from 'react';
import { get } from './mockBackend/fetch';

export default function SocialNetwork() {
  const [menu, setMenu] = useState(null);
    useEffect(() => {
      get('/menu').then((response) => {
        setMenu(menuResponse.data);
      });
   }, []);

  const [newsFeed, setNewsFeed] = useState(null);
  useEffect(() => {
    get('/news-feed').then((reponse) => {
      setNewsFeed(newsFeedResponse.data);
    });
  }, []);

  const [friends, setFriends] = useState(null);
  useEffect(() => {
    get('/friends').then((response) => {
      setFriends(friendsResponse.data);
    });
   }, []);

  return (
    <div className='App'>
      <h1>My Network</h1>
      {!menu ? <p>Loading..</p> : (
        <nav>
          {menu.map((menuItem) => (
            <button key={menuItem}>{menuItem}</button>
          ))}
        </nav>
      )}
      <div className='content'>
        {!newsFeed ? <p>Loading..</p> : (
          <section>
            {newsFeed.map(({ id, title, message, imgSrc }) => (
              <article key={id}>
                <h3>{title}</h3>
                <p>{message}</p>
                <img src={imgSrc} alt='' />
              </article>
            ))}
          </section>
        )}
        {!friends ? <p>Loading..</p> : (
          <aside>
            <ul>
              {friends
                .sort((a, b) => (a.isOnline && !b.isOnline ? -1 : 0))
                .map(({ id, name, isOnline }) => (
                  <li key={id} className={isOnline ? 'online' : 'offline'}>
                    {name}
                  </li>
                ))}
            </ul>
          </aside>
        )}
      </div>
    </div>
  );
}