      <span class="returntype"><a href="dart-core/int-class.html">int</a></span>
                  <span class="name ">length</span>
          
</section>
        
                <section class="desc markdown">
          <p>Returns the number of elements in <a href="dart-core/Iterable-class.html">this</a>.</p>
<p>Counting all elements may involve iterating through all elements and can
therefore be slow.
Some iterables have a more efficient way to find the number of elements.</p>
        </section>
        