th:25%;"><code>callback</code></th><td><p>The callback function.</p></td></tr></table></div></div><div class="field "><a name="setOnUpdate"></a><h3 class="anchor"><code><a href="#setOnUpdate"><span class="identifier">setOnUpdate</span></a>(<span style="white-space:nowrap">callback:(target:<span class="type">Dynamic</span>)&nbsp;&#8209;&gt;&nbsp;<span class="type">Void</span></span>):<a class="type" title="aeons.tween.Tween - The Tween class is used to tween values over time." href="../../aeons/tween/Tween.h