l#TYPEt">t</a></code></pre><div class="info ">
                    <div class="not-examples">
                    <code class="code">copy x</code> O(1) operation, return a new stack<br>
 
                    </div>
                    
                    </div>

                  
<pre><span id="VALpush"><span class="keyword">val</span> push</span> : <code class="type">'a <a href="Belt_MutableStack.html#TYPEt">t</a> -> 'a -> unit</code></pre>
<pre><span id="VALpopUndefined"><span class="keyword">val</span>