title: Difference betwen the [a-z][a-z]* and [a-z]+ regular expressions
body: <p>What is the difference between the following regular expressions. For me they are both the same</p>
  
  <ol>
  <li><code>[a-z][a-z]*</code>  <strong>Vs</strong>  <code>[a-z]+</code></li>
  <li><code>[a-z][a-z]*</code>  <strong>Vs</strong>  <code>[a-z]*[a-z]</code></li>
  </ol>