zilla.org/docs/Web/JavaScript/Reference/Global_Objects/String">String</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">The type of event that fired the change. Can be &#39;user&#39; (when the user clicks something to change the date) or &#39;api&#39; (when a method call is used to change the api.) </div></div></div></div></div></div></