title: Nullable Array and Why Do We Need Them
body: <p>I see code like this and I understand it as making an array nullable but I dont understand why do we need it since arrays are ref types, so they are already nullable.</p>
  
  <p>So, my question is why do we need this?</p>
  
  <pre><code>private readonly decimal?[] _amounts = new decimal?[_count];
  </code></pre>