Скачать или смотреть typescript and zod

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sure! let's dive into a tutorial on typescript and zod. typescript is a statically typed superset of javascript that adds type safety, while zod is a typescript-first schema declaration and validation library.

getting started with typescript and zod

1. setting up your project

first, ensure you have node.js installed. then, create a new directory for your project and initialize it:



next, install typescript and zod:



you can also install typescript globally (if you haven't yet):



2. initialize typescript

create a `tsconfig.json` file to configure typescript:



this will create a `tsconfig.json` file with default settings. you can modify it as needed. for example, you might want to set `"strict": true` for stricter type checks.

3. creating a basic typescript file

create a new file named `index.ts`:



in `index.ts`, let’s define a simple typescript interface and use zod to validate data against that interface.

4. using zod for validation

here's an example of how to use typescript with zod for input validation:



explanation of the code

1. **importing zod**: we start by importing the zod library.

2. **defining a schema**: we define a `userschema` using zod, which specifies that a user object must have:
a `name` of type string.
an `age` that is a non-negative number.
an `email` that must be a valid email format.

3. **creating a type**: we create a typescript type `user` that infers the structure from our zod schema.

4. **creating a user function**: the `createuser` function accepts user data, validates it against the schema using `safeparse`, and handles validation errors.

5. **using the function**: we demonstrate the function with both valid and invalid user data.

running the code

to run your typescript code, you need to compile it to javascript:



this will generate a `index.js` file. you can then run it using node.js:



conclusion

in this tutorial, you learned how to set up a typescript project and use zod for data val ...

#TypeScript #Zod #numpy
TypeScript Zod validation schema type safety runtime validation form validation data validation TypeScript types API validation input validation Zod integration TypeScript developer type inference error handling