html">String</a></span> <span class="parameter-name">separator</span> = <span class="default-value">""</span></span> ])
            <span class="returntype parameter">&#8594; <a href="dart-core/String-class.html">String</a></span>
          </span>
                  </dt>
        <dd class="inherited">
          Converts each element to a <a href="dart-core/String-class.html">String</a> and concatenates the strings. <a href="dart-collection/ListMixin/join.html">[...]</a>
                  <div class="featur