class="qm-api-item-content"><div class="qm-api-description"><div class="qm-html-paragraph">A function that renders the data in the dropdown and the picker button. </div><div class="qm-html-paragraph">This can also be set after the picker has been constructed using the  <code class="qm-code-highlight-code qm-code-font">renderer</code>  method. </div></div><div class="qm-api-default"><span class="qm-api-default-key">Default: </span><span class="qm-api-default-value"><div class="qm-code-highlight-codeblock lan