lass="qm-api-header-tags"></span></div></div></div></div><div class="qm-api-collapsible-content"><div class="qm-api-item-content"><div class="qm-api-description"><div class="qm-html-paragraph">The quadratic easing function is defined as </div><div class="qm-html-paragraph"><div class="qm-code-highlight-codeblock"><pre><code class="qm-code-font">functi<span class="hljs-meta">on(</span><span class="hljs-meta">x</span>) {
  <span class="hljs-meta">return</span> <span class="hljs-meta">x</span><span class="hljs