Reactive Data Display in React

Let's say we have an array of objects containing names and descriptions of something:

jsxconst initNotes = [
  {
    id: id(),
    name: 'name1',
    desc: 'long description 1'
  },
  {
    id: id(),
    name: 'name2',
    desc: 'long description 2'
  },
  {
    id: id(),
    name: 'name3',
    desc: 'long description 3'
  },
];

Let's print each element of this array in a separate paragraph:

jsxfunction App() {
  const [notes, setNotes] = useState(initNotes);
  
  const result = notes.map(note => {
    return <p key={note.id}>
      {note.name}, 
      <i>{note.desc}</i>
    </p>;
  });
  
  return <div>
    {result}
  </div>;
}

Now let's make it so that the description is initially hidden, but at the end of each paragraph we'll add buttons to show the description from this paragraph. To do this, we'll add the show property to each product object, which controls the display of the description:

jsxconst initNotes = [
  {
    id: id(),
    name: 'name1',
    desc: 'long description 1',
    show: false,
  },
  {
    id: id(),
    name: 'name2',
    desc: 'long description 2',
    show: false,
  },
  {
    id: id(),
    name: 'name3',
    desc: 'long description 3',
    show: false,
  },
];