tps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean">Boolean</a></span></span></span><span class="qm-api-header-tags"></span></div></div></div></div><div class="qm-api-collapsible-content"><div class="qm-api-item-content"><div class="qm-api-description"><div class="qm-html-paragraph">Emitted when the dropdown is shown or hidden. The data that comes with the event is a boolean indicating whether or not the dropdown is hidden. True means that the dropdown has just been shown, fals