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Exposing validation errors in a human-readable way guides the user when filling out and submitting forms, but when default implementations don't fit our needs, we need to come up with something that will. Let's build a custom validator for an Angular reactive form!

Although part of most applications, a well designed, user friendly, testable form is still one of those things that is really hard to achieve. Let's look at some unit tests we could write to verify input validation, error handling, and more.

Martine Dowden, Andromeda Galactic Solutions Founder and CEO, is awarded as a Google Developer Expert in Angular

In this video, Firebase GDE Michael Dowden walks through the creation of a chat application, start-to-finish, using Angular 11 on Firebase. This demo was performed live for the CODEstantine Developers Community on June 23, 2021.

Most applications, even single page apps, have routing. Just like most things when it comes to code, there are several ways that routes can be implemented in Angular. In this post, we will look at ways to implement child routes and the pros and cons of each technique.