This Zod tutorial will give you everything you ever needed to know about Zod - an amazing library for building type-safe AND runtime-safe applications.

# Installs all dependencies
yarn install

# Starts the first exercise
yarn exercise 01

# Runs linting and tests on the solution
yarn solution 01

You'll notice that the tutorial is split into exercises. Each exercise is split into a *.problem.ts and a *.solution.ts.

To take an exercise:

1. Go into *.problem.ts
2. Run yarn exercise 01, where 01 is the number of the exercise you're on.

The exercise script will run TypeScript typechecks and a test suite on the exercise.

This tutorial encourages active, exploratory learning. In the video, I'll explain a problem, and you'll be asked to try to find a solution. To attempt a solution, you'll need to:

1. Look for any 🕵️‍♂️ emojis to give you a hint on what to change
2. Check out Zod's docs
3. Try to find something that looks relevant.
4. Give it a go to see if it solves the problem.

You'll know if you've succeeded because the tests will pass.

If you succeed, or if you get stuck, check out the *.solution.ts. You can see if your solution is better or worse than mine!

You can run yarn solution 01 to run the tests and typechecking on the solution.

Say thanks to Matt on Twitter or by joining his Discord. Consider signing up to his Total TypeScript course.

Alias: yarn e 01

Run the corresponding *.problem.ts file.

Alias: yarn s 01

Run the corresponding *.solution.ts file. If there are multiple, it runs only the first one.