zilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function">Function</a></span></span></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 function to call to get the data. This will be called whenever the value is set or the select is opened, allowing the data to be changed easily. </div><div class="qm-html-paragraph">It is recommen