title: JS: Find URLs in Text, Make Links
body: <p>What would be the following PHP code rewritten in JS be, so that url links inside of text blobs could be replaced with html links? I've started a <a href="http://jsfiddle.net/9rZrp/" rel="nofollow">jsfiddle</a>.</p>
  
  <pre><code>&lt;?php
  
  // The Regular Expression filter
  $reg_exUrl = "/(http|https|ftp|ftps)\:\/\/[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(\/\S*)?/";
  
  // The Text you want to filter for urls
  $text = "The text you want to filter goes here. http://google.com";
  
  // Check if there is a url in the text
  if(preg_match($reg_exUrl, $text, $url)) {
  
     // make the urls hyper links
     echo preg_replace($reg_exUrl, "&lt;a href="{$url[0]}"&gt;{$url[0]}&lt;/a&gt; ", $text);
  
  } else {
  
     // if no urls in the text just return the text
     echo $text;
  
  }
  ?&gt;
  </code></pre>