title: How do I convert a mixed case array to lowercase using the map function in Javascript?
body: <p>I am attempting to convert a javascript mixed case Array to lowercase.  I've been searching for solutions, but the answers I am finding are for C#, C, or Java.  Can anyone give me suggestions on how to proceed?  </p>
  
  <p>Here's the relevant JS code I'm working with:</p>
  
  <pre><code>var newArray = oldArray.map(oldArray.toLowerCase);
  </code></pre>