 can not be extended or implemented. Attempting to do so
yields a compile-time error.</p>
<h2 id="other-resources">Other resources</h2>
<p>See <a href="dart-core/StringBuffer-class.html">StringBuffer</a> to efficiently build a string incrementally. See
<a href="dart-core/RegExp-class.html">RegExp</a> to work with regular expressions.</p>
<p>Also see:</p>
<ul>
<li><a href="https://www.dartlang.org/docs/cookbook/#strings">Dart Cookbook</a>
for String examples and recipes.</li>
<li><a href="https://www.dartlan