ion level2" number="8.9">
<h2><span class="header-section-number">8.9</span> Performances</h2>
<p>A few hints have already been given to ensure one does not drain the browser, consider assessing the performances of the widget as it is being built. Always try and imagine what happens under the hood of the htmlwidget as you build it, it often reveals potential bottlenecks and solutions.</p>
<p>Remember that data passed to <code>htmlwidgets::createWidget</code> is 1) loaded into R, 2) serialised to JSON, 3) em