title: Only select words with all lower case characters javascript
body: <p>I am trying to write a regex to match only words that contain only un-capitalized letters in a string, but cannot figure it out.</p>
  
  <p>Example</p>
  
  <pre><code>var str = "What a wonderful Sunday Afternoon";
  </code></pre>
  
  <p>I have managed to match any words beginning with a capital letter using this regex <code>var str1 = str.match(/[A-Z][a-z]+/g)</code></p>
  
  <p>Here <code>str1</code> returns <code>[What, Sunday, Afternoon]</code></p>
  
  <p>What I now want to do is write a regex that returns <code>a</code> and <code>wonderful</code>.</p>