title: Finding the largest string in an array of strings
body: <p>I'm trying to solve the below.  I don't have much practical knowledge of javascript. </p>
  
  <p>I need to find the largest string given from an array. If multiple strings in the array have the same length, return the first one of the longest length.</p>
  
  <pre><code>let test13 = ['a', 'aa', 'aaa'];
  let test14 = ['asdf', 'qwer', 'zxcv'];
  let test15 = ['asdfasdf fdasdf a sd f', ' asdfsdf', 'asdfasdfds', 'asdfsdf', 'asdfsdaf'];
  let test16 = ['ddd','dddddddd','dddd','ddddd','ddd','dd','d','d','dddddddddddd'];
  </code></pre>