$//$ require works in here just like in server.js

const bcrypt $=$ require$(\text{'}$bcryptjs$\text{'})$;

$//$ making a class to hold all our user logic

$//$ in web development, this is called a "model"

class User $\{$

$//$ constructor gets called when a new object is made, just like C$++,$ java, etc.

$//$ taking in an assoc array of parameters $("$properties$")$ is nice here because

$//$ it means we can pass in a row that we get from a database query

constructor$($props$)\{$

$//$ store the props in the new object

$//($explicit "this" is a good practice$)$

this.id $=$ props.id;

this.username $=$ props.username;

this.password$\_$hash $=$ props.password$\_$hash;

this.admin $=$ props.admin;

$\}$