Practice · Reading the Source

Drill the framework's behavior

Multiple-choice cards on the parts of Rails most developers use daily without dissecting. Each card pairs with one of the long-form Reading the Source lessons.

Card 1

What `optional: true` actually changes

Card 2

Which line actually runs the SQL?

Card 3

`require` vs `[]` failure modes

Card 4

Why is the unauthorized user still through?

Card 5

What's missing from this hand-written form?

Want the theory? Each card ends with a pointer to its long-form lesson. The series itself lives at Reading the Source.

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