title: lodash isEmpty and has method vs simple check
body: <p>I can do <code>if(user) { //do something }</code> but I've seen people used lodash to do simple checking. I've read lodash's docs about <code>isEmpty</code> and <code>has</code> methods, but can't figure out why you'd want to use these.</p>
  
  <pre><code>import { isEmpty } from 'lodash'; 
  
  if(isEmpty(user)) { //omg why? }
  </code></pre>