title: Regex AND operator
body: <p>Based on this answer</p>
  
  <p><a href="https://stackoverflow.com/questions/469913/regular-expressions-is-there-an-and-operator">Regular Expressions: Is there an AND operator?</a></p>
  
  <p>I tried the following on <a href="http://regexpal.com/" rel="noreferrer">http://regexpal.com/</a> but was unable to get it to work. What am missing? Does javascript not support it?</p>
  
  <p>Regex: <code>(?=foo)(?=baz)</code></p>
  
  <p>String: <code>foo,bar,baz</code></p>