title: Difference between 'RegExp' and regex?
body: <p>I'm just getting into regular expressions with Javascript... And I seem to have gone on and confused myself...</p>
  
  <p>Some googling here and there didn't do me any good either... </p>
  
  <p>I know the Javascript syntax of:</p>
  
  <pre><code>var str = "Hello!";
  var x = new RegExp(...);
  document.write = x.eval(str);
  </code></pre>
  
  <p>Am I missing something here?</p>
  
  <p>Edit: Apparently I wasn't clear... I am new to Javascript Regular Expressions. From my understanding, regex and regexp are different. If so, what is the difference?</p>