f="dart-core/String/lastIndexOf.html">lastIndexOf</a></span><span class="signature">(<wbr><span class="parameter" id="lastIndexOf-param-pattern"><span class="type-annotation"><a href="dart-core/Pattern-class.html">Pattern</a></span> <span class="parameter-name">pattern</span>, [</span> <span class="parameter" id="lastIndexOf-param-start"><span class="type-annotation"><a href="dart-core/int-class.html">int</a></span> <span class="parameter-name">start</span></span> ])
            <span class="returntype para