title: Handling a large resource file in react native
body: <p>My javascript app has a class Dictionary. The dictionary reads a large json (require..) file.</p>
  <p>I have a bunch of questions regarding best practices.</p>
  <ol>
  <li><p>I would like to load the Dictionary once, while the Splashcreen is shown. I am using react navigation v5. How to achieve that?</p>
  </li>
  <li><p>How do I assure, that the dictionary exists only on time in memory (not multiple versions, anytime the parent component is rendered)</p>
  </li>
  </ol>