And here's what's going to blow your mind: by the end of this lesson, you'll not only understand how they did it, but you'll be itching to try it yourself! Look, I totally get it if programming feels ...

Most language apps grade against an answer key. Type "bon pour votre santé" when the lesson expected "bon pour ta santé" and it's marked wrong, even though both are correct French. Coquille works like ...