Reddit
reddit.com › r/reactjs › react 19 and typescript
r/reactjs on Reddit: React 19 and TypeScript
February 9, 2025 -
What's up with the new types in React 19? Why is ReactNodesuddenly something different? It now throws a bunch of errors in places it didn't before. Is there a LegacyReactNode type or something I can use to get the old definitions, or should I define my own?
For example, if I have ReactNode as a property on a component, to be used in a certain place in the child elements, it throws a TS error—presumably because Promise<AwaitedReactNode> isn't a valid child. What's the solution for this?
Top answer 1 of 5
12
Check your packages.json to make sure you're using the react types package that matches your React version, or clear your npm cache.
2 of 5
7
I'm using React 19 in a TS project and there doesn't seem to be anything weird going on with the ReactNode type. This works fine: const Foo = ({child}: {child: ReactNode}): ReactNode => { return {child}; }; As the other guy suggested, try deleting node modules and reinstalling.
React
react.dev › learn › typescript
Using TypeScript – React
The type describing your component’s props can be as simple or as complex as you need, though they should be an object type described with either a type or interface. You can learn about how TypeScript describes objects in Object Types but you may also be interested in using Union Types to ...
reactjs - React 19 typescript add typeof web component - Stack Overflow
In React 18, the type definitions for JSX.IntrinsicElements worked fine for web components. But after upgrading to React 19, the types stopped working, even though I can still access the types glob... More on stackoverflow.com
TypeScript type error with React 19 types
🐛 Bug Report Type error with React v19 types. The global type namespace JSX has been removed for better compatibility with other JSX libs. https://react.dev/blog/2024/04/25/react-19-upgrade-guide#the-jsx-namespace-in-typescript To Reprod... More on github.com
5
December 12, 2024[React 19] Wrong `@types/react*` default version and build fails if the correct version is installed
If we follow https://react.dev... the React 19 compatible @types/react and @types/react-dom (already done in the above repo), Next.js will believe @types/react is not installed when running next build: It looks like you're trying to use TypeScript but do not have the ... More on github.com
7
May 10, 2024In React v19, ref is now a prop. But how it would be using typescript?
React.RefObject or React.MutableRefObject More on reddit.com
11
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May 6, 2024Videos
50:09
React Full Course - Lesson 11: React 19, TypeScript with React ...
11:32:04
React Tutorial Full Course - Beginner to Pro (React 19, 2025) - ...
06:11
Every React 19 Change In 6 Minutes - YouTube
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React JS 19 Full Course 2025 | Build an App and Master React in ...
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React 19 : La nouvelle façon ultra simple de passer une ref ...
React 19 : Boost tes interfaces avec le hook useOptimistic ...
React
react.dev › blog › 2024 › 04 › 25 › react-19-upgrade-guide
React 19 Upgrade Guide – React
In React 19, we’re removing the propType checks from the React package, and using them will be silently ignored. If you’re using propTypes, we recommend migrating to TypeScript or another type-checking solution.
DEV Community
dev.to › abdulnasirolcan › react-with-typescript-advanced-techniques-compatible-with-react-19-2cbe
React with TypeScript: Advanced Techniques (Compatible with React 19) 🚀 - DEV Community
October 19, 2024 - Using TypeScript with React makes your development process more secure and sustainable. By correctly typing component types, state management, refs, and event handling, you reduce the likelihood of errors and make your code more readable.
Medium
medium.com › @ignatovich.dm › the-new-approach-to-passing-refs-in-react-19-typescript-a5762b938b93
The New Approach to Passing Refs in React 19 + TypeScript 🚀 | by Frontend Highlights | Medium
February 20, 2025 - In React 19, you can now directly use the ref prop without additional boilerplate, improving readability and reducing complexity. Here’s how you can pass a ref to an input field without forwardRef: import React, { useRef } from 'react'; function TextInput() { const inputRef = useRef<HTMLInputElement>(null); const handleFocus = () => { inputRef.current?.focus(); }; return ( <div> <input ref={inputRef} type="text" placeholder="Type here..."
DEV Community
dev.to › sovannaro › every-react-19-feature-explained-with-typescript-examples-2dkn
Every React 19 Feature Explained with TypeScript Examples - DEV Community
January 26, 2025 - Better Type Inference: React 19 improves type inference for hooks, components, and context, reducing the need for manual type annotations. Enhanced Error Messages: TypeScript error messages are now more descriptive and actionable, making it ...
Medium
medium.com › @CodersWorld99 › react-19-typescript-best-practices-the-new-rules-every-developer-must-follow-in-2025-3a74f63a0baf
React 19 and TypeScript Best Practices Guide (2025) — How to Write Cleaner, Faster, and Scalable Code | Medium
November 21, 2025 - A complete step-by-step React 19 + TypeScript guide covering modern patterns, strict typing techniques, component architecture improvements, performance optimizations, and best practices every developer needs for production-ready apps in 2025.
GitHub
github.com › i18next › react-i18next › issues › 1823
TypeScript type error with React 19 types · Issue #1823 · i18next/react-i18next
December 12, 2024 - 🐛 Bug Report Type error with React v19 types. The global type namespace JSX has been removed for better compatibility with other JSX libs. https://react.dev/blog/2024/04/25/react-19-upgrade-guide#the-jsx-namespace-in-typescript To Reprod...
Author danielrentz
Mostly Focused
mostlyfocused.com › pages › articles › react_context
How To Use React Context (V19 and Typescript)
January 6, 2025 - We're just going to use Vite to ... few components. It's only App, Parent, and Child, and the point of them is to show that when Child eventually uses context, it doesn't trigger any re-renders of the parents....
Mike Polinowski
mpolinowski.github.io › development › javascript › typescript 2.0 in react 19 (2023)
TypeScript 2.0 in React 19 (2023) | Mike Polinowski
<p>Some HTML that is not nested.</p> <Box> <h2>Another React component with one child.</h2> </Box> <Box> <h2 className="mb-4">A nested React component with two children.</h2> <p>The second child.</p> </Box> </Box> </main> ); }; export default Application; Typescript prompts us to use one of the following to get rid of the any type: JSX.Element;: Only works if there is a single JSX element ·
GitHub
github.com › DefinitelyTyped › DefinitelyTyped › discussions › 64451
[react] Types for 19 · DefinitelyTyped/DefinitelyTyped · Discussion #64451
React 19 is not released. This issue is meant to collect type-related breaking changes we want to ship with the next major: ... default P of ReactElement to unknown I missed to do this in React 18.
Author DefinitelyTyped
GitHub
github.com › vercel › next.js › issues › 65599
[React 19] Wrong `@types/react*` default version and build fails if the correct version is installed · Issue #65599 · vercel/next.js
May 10, 2024 - Installing dependencies If you are not trying to use TypeScript, please remove the tsconfig.json file from your package root (and any TypeScript files in your pages directory). Installing devDependencies (npm): - @types/react
Published May 10, 2024
Author mwskwong
Medium
imrankhani.medium.com › 10-react-19-typescript-tips-for-frontend-developers-bb8ce168ed5d
10 React 19 + TypeScript Tips for Frontend Developers | by Imran Khan | Medium
May 19, 2025 - React 19 introduces server actions, improved Suspense, and built-in support for async workflows. When paired with TypeScript, you get type-safe, modern, and scalable front-end architecture.
Medium
medium.com › @sulmanahmed135 › react-19-new-features-a-comprehensive-guide-for-react-js-typescript-developers-715d6542dd0d
React 19 New Features — A Comprehensive Guide for React JS & TypeScript Developers | by Sulman Ahmed | Medium
December 9, 2025 - React 19 introduces powerful new features that make development faster, more efficient, and more aligned with modern web standards. This blog explains each major feature in simple terms, with practical usage examples — especially tailored ...
Amazon
amazon.com › React-19-TypeScript-Example-Hands › dp › B0G58CD316
React 19 with TypeScript by Example: A Hands-On Guide to Building and Testing Apps with Vite, Vitest & React Testing Library: Lee, Sam: 9798277542286: Amazon.com: Books
You will be guided from the fundamentals to advanced topics through a progressive series of runnable examples. The journey begins with setting up a seamless Vite development environment and leveraging TypeScript for type-safe components. You will then master modern React 19 patterns, including Function Components and essential Hooks like useState and useEffect.
egghead.io
egghead.io › tips › setup-and-dive-into-the-react-19-compiler-optimizations
Setup and Dive into the React 19 Compiler Optimizations
Let's see what it does by running a new Vite based React TypeScript application. And let's compare what is the difference between the output before using the compiler and after. Let's start by installing the dependencies and running the application. So · 00:00:20 I'll run npm install and npm run dev. Our application is up and running as we can see so let's start with walking through the React 19 beta upgrades.
npm
npmjs.com › package › @types › react
@types/react - npm
February 11, 2026 - TypeScript definitions for react. Latest version: 19.2.14, last published: 2 months ago. Start using @types/react in your project by running `npm i @types/react`. There are 19060 other projects in the npm registry using @types/react.
» npm install @types/react
Published Feb 11, 2026
Version 19.2.14
JavaScript in Plain English
javascript.plainenglish.io › react-19-just-broke-50-of-my-components-migration-guide-they-didnt-give-you-d0adb91158ef
React 19 Just Broke 50% of My Components (Migration Guide They Didn’t Give You) | by Devrim Ozcay | JavaScript in Plain English
December 8, 2025 - Three weeks ago, I read React 19’s release notes. “Stable release,” they said. “Smooth upgrade,” they promised. My team was running React 18.2 on a 47-component dashboard serving 80K daily users. Everything worked perfectly. I thought: “Let’s upgrade on Friday night. Low traffic. Easy rollback.” · Famous last words. By 11:47 PM, production was throwing 127 TypeScript ...
Reddit
reddit.com › r/react › in react v19, ref is now a prop. but how it would be using typescript?
r/react on Reddit: In React v19, ref is now a prop. But how it would be using typescript?
May 6, 2024 -
I saw lots of examples, but they seem to be made with jsx, like this:
function MyInput({ placeholder, ref }) {
return <input placeholder={placeholder} ref={ref} />;
}
<MyInput ref={React.createRef()} />
In this case, how would be the type of this ref prop? I'm asking this because with forwardRef() function, i have to give two types, because it needs (forwardRef<T, P = {}>).
So given all these information, how should i type this prop?