title: Doesn't "find" exist on any kind of typescript or javascript array?
body: <p>Notice the error message at the bottom: "config.ts(19,28): error TS2339: Property 'find' does not exist on type 'Answer[]". I thought all arrays would have a "find" method. </p>
  
  <p>I am sure I am missing something!</p>
  
  <p><img src="https://i.stack.imgur.com/zH4li.png" alt="enter image description here"></p>