title: REGEX (javascript) - Allow alphanumeric characters with special characters not in the first position
body: <p>I'd like to devise a regex expression that allows alphanumeric characters, as well as other characters as long as they're not in the first position.  Examples:</p>
  
  <pre><code>VALID: Test
  VALID: Hello123
  VALID: 456 Hi
  VALID: 456-789
  VALID: Hi-777
  VALID: 333-Hi
  VALID: Hello-There
  VALID: What's Up
  VALID: Hello#Goodbye
  
  INVALID: -Hello
  INVALID: &amp;Goodbye
  </code></pre>
  
  <p>Here's my starting point, which only allows alphanumeric:</p>
  
  <pre><code>/[a-zA-Z]+/
  </code></pre>