terns are discouraged:</p>
<h4 id="avoid-fat-components"><a href="#avoid-fat-components">Avoid fat components</a></h4>
<p>Generally speaking, a &quot;fat&quot; component is a component that has custom instance methods. In other words, you should avoid attaching functions to <code>vnode.state</code> or <code>this</code>. It&#39;s exceedingly rare to have logic that logically fits in a component instance method and that can&#39;t be reused by other components. It&#39;s relatively common that said logic might 