li>Parameter other: A set of the same type as the current set.</li>
</ul>
<blockquote>
<p>Note:
if this set and <code>other</code> contain elements that are equal but distinguishable (e.g. via <code>===</code>), which of these elements is present in the result is unspecified.</p>
</blockquote>
<h4>Declaration</h4><code class="language-swift">func union(_ other: Self) -> Self</code></div></div><div id="update_with-33e0c77147f944b0fee4b5d061901528" class="declaration"><a class="toggle-link" href="#comment-upd