">let</span> <span onmouseout="hideTip(event, 'fs6', 14)" onmouseover="showTip(event, 'fs6', 14)" class="fn">getPropertyNames</span> <span class="pn">(</span><span onmouseout="hideTip(event, 'fs7', 15)" onmouseover="showTip(event, 'fs7', 15)" class="id">target</span><span class="pn">:</span><span onmouseout="hideTip(event, 'fs8', 16)" onmouseover="showTip(event, 'fs8', 16)" class="rt">obj</span><span class="pn">)</span> <span class="o">=</span>
  <span onmouseout="hideTip(event, 'fs9', 17)" onmouseover="sho