 href="./String.html">String</a>, f:<a class="type" href="./EReg.html">EReg</a> -&gt;<a class="type" href="./String.html">String</a>):<a class="type" href="./String.html">String</a></code></p></h3><div class="doc" style="margin-bottom: 0px;margin-top: 0px;"><p>Calls the function <code>f</code> for the substring of <code>s</code> which <code>this</code> EReg matches
and replaces that substring with the result of <code>f</code> call.</p>
<p>The <code>f</code> function takes <code>this</code> EReg object as it