class="properties">
        <dt id="memory" class="property">
          <span class="name"><a href="../dart-html/Performance/memory.html">memory</a></span>
          <span class="signature">&#8594; <a href="../dart-html/MemoryInfo-class.html">MemoryInfo</a></span>         
        </dt>
        <dd>
           
                  <div class="features">read-only</div>
</dd>
        <dt id="navigation" class="property">
          <span class="name"><a href="../dart-html/Performance/navigation.html">navigation<