Challenge: Writing Cypress Commands

Problem statement

It’s possible to set default function parameters in JavaScript and TypeScript. This allows us to avoid writing some of the code in our Cypress signup command, such as the following:

var username = username || 'user';

Try updating the Cypress command to see if you can leverage default function parameters.

(See: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Default_parameters)