pan class="punctuation">.</span><span class="function"><a href="/api/mergeable-store/interfaces/mergeable/mergeablestore/methods/listener/addvaluelistener/">addValueListener</a></span><span class="punctuation">(</span>
  <span class="string">'employees'</span><span class="punctuation">,</span>
  <span class="punctuation">(</span><span class="parameter">store<span class="punctuation">,</span> valueId<span class="punctuation">,</span> newValue<span class="punctuation">,</span> oldValue<span class="punctuation