SplayTreeMap/operator_put.html">operator []=</a></li>
      <li class="inherited"><a href="dart-core/Object/operator_equals.html">operator ==</a></li>
    
    
    
    </ol>
  </div><!--/.sidebar-offcanvas-->

  <div class="col-xs-12 col-sm-9 col-md-8 main-content">
    <h1>putIfAbsent method</h1>

    <section class="multi-line-signature">
      <span class="returntype">V</span>
      <span class="name ">putIfAbsent</span>
(<wbr><span class="parameter" id="putIfAbsent-param-key"><span class="type-annotat