title: Why would we set extended to false in an Express app like this: express.urlencoded({extended: false})
body: <p>I'm learning Express. While doing a tutorial, the tutor used <code>express.urlencoded({extended: false})</code>. I learned what url-encoding is, and I've read descriptions on the true or false values for the extended option, but I'm still not sure why we have to put <code>extended: false</code> in this app. I know it's because we are storing input from a form, and that input has to be parsed to be usable in the req.body object. But the best documentation on the extended option says that a true value uses the qs library and allows for rich objects and arrays in our body object, whereas false uses the querystring library which only allows a string or an array.</p>
  <p>I still don't understand why we set extended to false.</p>