<div><div style="top:0px;height:19px;" class="view-line"><span><span class="mtk10">document</span><span class="mtk1">.</span><span class="mtk16">querySelector</span><span class="mtk1">(</span><span class="mtk12">"button"</span><span class="mtk1">).</span><span class="mtk16">addEventListener</span><span class="mtk1">(</span><span class="mtk12">"click"</span><span class="mtk1">,&nbsp;(</span><span class="mtk10">event</span><span class="mtk1">)&nbsp;</span><span class="mtk6">=&gt;</span><span class="mtk1">&nbsp;{</span></span></div><div style="top:19px;height:19px;" class="view-line"><span><span class="mtk1">&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="mtk10">event</span><span class="mtk1">.</span><span class="mtk19">target</span><span class="mtk1">.</span><span class="mtk10">innerText</span><span class="mtk1">&nbsp;</span><span class="mtk3">=</span><span class="mtk1">&nbsp;</span><span class="mtk12">"Button&nbsp;clicked!"</span><span class="mtk1">;</span></span></div><div style="top:38px;height:19px;" class="view-line"><span><span class="mtk1">});</span></span></div></div>