amortized)
constant time: <a href="dart-core/Set/add.html">add</a>, <a href="dart-core/Set/contains.html">contains</a>, <a href="dart-core/Set/remove.html">remove</a>, and <a href="dart-collection/LinkedHashSet/length.html">length</a>, provided the hash
codes of objects are well distributed..</p>
    </section>
    
    <section>
      <dl class="dl-horizontal">

        <dt>Implemented types</dt>
        <dd>
          <ul class="comma-separated clazz-relationships">
            <li><a href="dart-core/Set-