TypeScript VS io-ts

Compare TypeScript vs io-ts and see what are their differences.

TypeScript

TypeScript is a superset of JavaScript that compiles to clean JavaScript output. (by microsoft)
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TypeScript io-ts
1,305 80
98,060 6,602
0.5% -
9.9 4.9
1 day ago 5 months ago
TypeScript TypeScript
Apache License 2.0 MIT License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

TypeScript

Posts with mentions or reviews of TypeScript. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-04-25.
  • JSR Is Not Another Package Manager
    2 projects | news.ycombinator.com | 25 Apr 2024
    Regular expressions are part of the language, so it's not so unreasonable that TypeScript should parse them and take their semantics into account. Indeed, TypeScript 5.5 will include [new support for syntax checking of regular expressions](https://github.com/microsoft/TypeScript/pull/55600), and presumably they'll eventually be able to solve the problem the GP highlighted on top of those foundations.
  • TypeScript Essentials: Distinguishing Types with Branding
    2 projects | news.ycombinator.com | 24 Apr 2024
    Dedicated syntax for creating unique subsets of a type that denote a particular refinement is a longstanding ask[2] - and very useful, we've experimented with implementations.[3]

    I don't think it has any relation to runtime type checking at all. It's refinement types, [4] or newtypes[5] depending on the details and how you shape it.

    [1] https://github.com/microsoft/TypeScript/blob/main/src/compil...

  • What is an Abstract Syntax Tree in Programming?
    13 projects | dev.to | 5 Apr 2024
    GitHub | Website
  • Smart Contract Programming Languages: sCrypt vs. Solidity
    2 projects | dev.to | 5 Apr 2024
    Learning Curve and Developer Tooling sCrypt is an embedded Domain Specific Language (eDSL) based on TypeScript. It is strictly a subset of TypeScript, so all sCrypt code is valid TypeScript. TypeScript is chosen as the host language because it provides an easy, familiar language (JavaScript), but with type safety. There’s an abundance of learning materials available for TypeScript and thus sCrypt, including online tutorials, courses, documentation, and community support. This makes it relatively easy for beginners to start learning. It also has a vast ecosystem with numerous libraries and frameworks (e.g., React, Angular, Vue) that can simplify development and integration with Web2 applications.
  • Understanding the Difference Between Type and Interface in TypeScript
    1 project | dev.to | 2 Apr 2024
    As a JavaScript or TypeScript developer, you might have come across the terms type and interface when working with complex data structures or defining custom types. While both serve similar purposes, they have distinct characteristics that influence when to use them. In this blog post, we'll delve into the differences between types and interfaces in TypeScript, providing examples to aid your understanding.
  • Type-Safe Fetch with Next.js, Strapi, and OpenAPI
    8 projects | dev.to | 2 Apr 2024
    TypeScript helps you in many ways in the context of a JavaScript app. It makes it easier to consume interfaces of any type.
  • Proposal: Types as Configuration
    1 project | news.ycombinator.com | 1 Apr 2024
  • How to scrape Amazon products
    4 projects | dev.to | 1 Apr 2024
    In this guide, we'll be extracting information from Amazon product pages using the power of TypeScript in combination with the Cheerio and Crawlee libraries. We'll explore how to retrieve and extract detailed product data such as titles, prices, image URLs, and more from Amazon's vast marketplace. We'll also discuss handling potential blocking issues that may arise during the scraping process.
  • Shared Tailwind Setup For Micro Frontend Application with Nx Workspace
    6 projects | dev.to | 29 Mar 2024
    TypeScript
  • Building a Dynamic Job Board with Issues Github, Next.js, Tailwind CSS and MobX-State-Tree
    6 projects | dev.to | 28 Mar 2024
    Familiarity with TypeScript, React and Next.js

io-ts

Posts with mentions or reviews of io-ts. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-12-07.
  • TDD
    2 projects | /r/CharruaDevs | 7 Dec 2023
    Qué rico. Si tenés chance meté un proceso de code review fuerte, y para el tema de I/O probá a usar https://github.com/Effect-TS/schema ó https://github.com/gcanti/io-ts que les da una solución obvia al tema de "tipos para lo que devuelva el backend", aunque es en realidad mucho más capaz que eso.
  • Domain modelling with State Machines and TypeScript by Carlton Upperdine
    3 projects | /r/programming | 30 May 2023
    My fave is still io-ts (https://github.com/gcanti/io-ts/blob/master/docs/index.md) as I find it more flexible than zod at the ingress. The author is also working on the Effect ecosystem which also looks interesting.
  • Why I Like Using Maps (and WeakMaps) for Handling DOM Nodes
    1 project | news.ycombinator.com | 6 May 2023
    I’ve been using io-ts for this and been very happy with it. [1] It’s similar to Swift’s Coding protocol in case you’re familiar.

    [1] https://gcanti.github.io/io-ts/

  • Can someone recommend a library for data parsing similar to Zod, but with better support for input transformations/preprocessing?
    2 projects | /r/typescript | 30 Apr 2023
    Yeah, there are a few new concepts and it's not the easiest to pick up right away. The best introduction is here on the main documentation page.
  • libraries you are happy that you discovered them
    10 projects | /r/typescript | 27 Dec 2022
  • Is React for small projects an Overkill?
    2 projects | /r/reactjs | 10 Dec 2022
  • how to strictly type this?
    1 project | /r/typescript | 19 Nov 2022
    We use https://github.com/gcanti/io-ts/blob/master/Decoder.md which has a very similar interface. It can even be used to mutate the data using https://github.com/gcanti/io-ts/blob/master/Decoder.md#the-parse-combinator.
  • Typescript advanced bits: function overloading, never and unknown types
    3 projects | dev.to | 10 Nov 2022
    A good way to significantly improve the reliability of your app is via improving type-safety by moving away from using any to unknown. One relevant example could be when you type your backend responses and when stringifying JSON to using unknown combined with some sort of runtime type checking. It can be done either by using built-in functionality like type guards or using an external library like io-ts, zod or yup.
  • I found 10,000x faster TypeScript validator library
    5 projects | dev.to | 1 Nov 2022
    Usage of TypeBox is similar with io-ts and zod, but it is much powerful and faster than them. Also, TypeBox can generate JSON schema very easily. Therefore, if you're looking for a validator library for new project and not suffering from legacy codes, I think TypeBox would be much better choice than io-ts and zod. TypeBox can totally replace them.
  • Validate your data with Zod
    2 projects | dev.to | 31 Oct 2022
    This check can be done with different libraries like: io-ts, typebox, or zod. These libraries allow you to create objects that represent your typescript definitions. Then, these objects can be used at runtime to validate the received data, in addition, you can also convert this object to a Typescript definition to have all the benefits of using typescript. These objects can be called schema validations because they are responsible for the data validation.

What are some alternatives?

When comparing TypeScript and io-ts you can also consider the following projects:

zod - TypeScript-first schema validation with static type inference

Flutter - Flutter makes it easy and fast to build beautiful apps for mobile and beyond

class-validator - Decorator-based property validation for classes.

Tailwind CSS - A utility-first CSS framework for rapid UI development.

openapi-generator - OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

zx - A tool for writing better scripts

fp-ts - Functional programming in TypeScript

esbuild - An extremely fast bundler for the web

runtypes - Runtime validation for static types

gray-matter - Smarter YAML front matter parser, used by metalsmith, Gatsby, Netlify, Assemble, mapbox-gl, phenomic, vuejs vitepress, TinaCMS, Shopify Polaris, Ant Design, Astro, hashicorp, garden, slidev, saber, sourcegraph, and many others. Simple to use, and battle tested. Parses YAML by default but can also parse JSON Front Matter, Coffee Front Matter, TOML Front Matter, and has support for custom parsers. Please follow gray-matter's author: https://github.com/jonschlinkert

joi - The most powerful data validation library for JS [Moved to: https://github.com/hapijs/joi]