Zod quiz

Test your Zod knowledge with a free interactive quiz — 27 questions with answers and explanations. No signup needed to play.

What is the difference between `schema.parse(value)` and `schema.safeParse(value)`?

1. What is the difference between `schema.parse(value)` and `schema.safeParse(value)`?
2. How do you mark a field as optional in a Zod object schema?
3. `schema.partial()` and `schema.required()` on an object schema do what?
4. Which Zod schema represents an array of strings?
5. `schema.pick({ name: true })` and `schema.omit({ email: true })` are used to:
6. Which adds a length range to a string schema?
7. What is Zod?
8. How do you make a field accept `null` but not be omitted?
9. For server-side validation (e.g. an Express/Next.js handler), the recommended pattern is:
10. How do you create a Zod schema for a fixed set of string values, e.g. `"draft" | "published"`?
11. `z.union([z.string(), z.number()])` produces a schema that accepts:
12. `objectSchema.extend({ extra: z.string() })` does what?

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