pan>
          <span class="signature">&#8594; <a href="../dart-core/int-class.html">int</a></span>         
        </dt>
        <dd>
          The offset in <a href="../dart-core/FormatException/source.html">source</a> where the error was detected. <a href="../dart-core/FormatException/offset.html">[...]</a>
                  <div class="features">final</div>
</dd>
        <dt id="source" class="property">
          <span class="name"><a href="../dart-core/FormatException/source.html">source</a></span>
 