What is Zod and how do I use it for validation in TypeScript?

What is Zod and how do I use it for validation in TypeScript?

Zod is a TypeScript-first schema declaration and validation library. It allows you to define schemas for your data and validate them easily.

Can you show me a simple example of using Zod for validation?

Sure! Here's a basic example:

import { z } from 'zod';

const userSchema = z.object({
  name: z.string(),
  age: z.number().min(18),
});

const result = userSchema.safeParse({ name: 'Alice', age: 25 });
console.log(result.success); // true

What happens if the validation fails?

If validation fails, Zod will return an object with an error message. You can access the errors like this:

const result = userSchema.safeParse({ name: 'Bob', age: 15 });
if (!result.success) {
  console.log(result.error.errors); // Logs the validation errors
}

Can I use Zod with other libraries like React?

Absolutely! Zod works well with React and can be integrated with form libraries like React Hook Form for seamless validation.