lass="punctuation">;</span>

<span class="keyword">const</span> listenerId <span class="operator">=</span> store<span class="punctuation">.</span><span class="function"><a href="/api/store/interfaces/store/store/methods/listener/addvaluelistener/">addValueListener</a></span><span class="punctuation">(</span>
  <span class="keyword">null</span><span class="punctuation">,</span>
  <span class="punctuation">(</span><span class="parameter">store<span class="punctuation">,</span> valueId<span class="punctuation"