Show First Then Maybe Explain 1

Instructor: [0:00] Today, we're going to be using the .someArray method to stop us from creating two users and our usersArray with the same email. Now, .some is really cool because what it does is it iterates over an array, but once the condition is met, it actually stops and returns us a Boolean. Unlike other array methods that actually continue to iterate over the length of the array.

[0:18] First, we're going to create the userExists variable. That's actually we're going to use for our .some method. We'll grab the user, and we'll check that userEmail against our new userEmail. If that user exists, we'll just throw a new error. The user with that email exists. Otherwise, we just create that new user.

[0:58] As you can see, we're already getting the error, because we're trying to create a user with two of the same email. If we were to change this to something like "Dan," everything would go just as planned, and we'll have both entries in our Users array. Pretty cool.