react-codemod
react-18
react-codemod | react-18 | |
---|---|---|
9 | 139 | |
4,059 | 5,173 | |
0.1% | 0.0% | |
3.2 | 0.0 | |
3 days ago | almost 3 years ago | |
JavaScript | ||
MIT License | - |
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.
react-codemod
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Converting class based components into functional ones
You can convert the “easy” render-only class components to function components using the pure-component codemod.
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Front-end Guide
Developer Experience - There are a number of tools that improves the development experience with React. React Developer Tools is a browser extension that allows you to inspect your component, view and manipulate its props and state. Hot reloading with webpack allows you to view changes to your code in your browser, without you having to refresh the browser. Front end development involves a lot of tweaking code, saving and then refreshing the browser. Hot reloading helps you by eliminating the last step. When there are library updates, Facebook provides codemod scripts to help you migrate your code to the new APIs. This makes the upgrading process relatively pain-free. Kudos to the Facebook team for their dedication in making the development experience with React great.
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A new way to ship Codemods
Like most popular libraries, e.g. React, Next.js and more, which provide codemods to help move their huge user base across versions, we needed a bespoke and fairly simple CLI wrapper of jscodeshift, that would provide a means of publishing, downloading and running codemods. So we created a custom 'codemod-cli', our first piece of internal codemod infrastructure.
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React v18.0
If you'd like to migrate them, the React team maintains some awesome codemods:
https://github.com/reactjs/react-codemod
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[AskJS] How do you release libraries updates with breaking changes?
Codemods - providing automated tooling to change old patterns to new ones can go a long way in helping drive adoption of the new version. The most notable example of doing this is react-codemod (many other examples exist)
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All about Abstract Syntax Tree
Sometimes you need to migrate from one version of a library to another, for example, when React has updated to version 15.5 the PropTypes has moved to different package and the react-developers provides codemod for migration.
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Modern JavaScript:Everything you missed over the last 10 years(ECMAScript 2020)
Can you point me towards examples of the usage of AST rewriting tools that are actively being used by open-source library maintainers in other ecosystems to help their consumers do upgrades in large code-bases (e.g. I can see that `clang` has AST tooling, but I don't see examples online of this being widely used: https://devblogs.microsoft.com/cppblog/exploring-clang-tooli...).
Within the JavaScript ecosystem this is quite popular (1. https://github.com/reactjs/react-codemod; 2. https://github.com/mui-org/material-ui/tree/HEAD/packages/ma... 3. https://github.com/emotion-js/emotion/tree/main/packages/esl... etc.) Teams that maintain huge codebases have tooling to safely automate their upgrades and the best library maintainers provide their consumers with these AST transformations.
> Don't tell that to anyone who uses
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Introducing Astra: A Tool for Refactoring Java Programs at Scale
Agree. I know js has a similar tool, jscodeshift. https://github.com/reactjs/react-codemod and https://github.com/cpojer/js-codemod/tree/master/transforms have some ideas for js.
- React 17 DOM tree inside of React 16.2 DOM
react-18
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Simulate global state tradeoffs in React concurrent mode
If you aren't sure why state tearing was a hot topic a few years ago, when React's concurrent mode was first discussed, this github discussion should help: https://github.com/reactwg/react-18/discussions/69.
Tanner Linsley had a great post on twitter that suggested that concurrent rendering was fundamentally at odds with fine-grained reactivity, so to better understand what he was talking about I decided to write this demo.
- A modest request: How do you fetch data in React 18+ WITHOUT a third party dependency?
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The Sisyphean Quest for Web Performance
Image Source: https://github.com/reactwg/react-18/discussions/37
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useAsyncState in react, no more unnecessary useEffects.
But it does since React 18.
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Function props
See this post for more details and an example of an actual memory leak.
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ELI5, why is ReactDOM.createRoot an improvement over ReactDOM.render?
From the React WG:
- I know my component is re-rendering because a console.log I put in the component is logging in the console. However when I use the inspector to see why it re-rendered, its saying that it didnt re-render. How is this possible?
- Timeout in event handler
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The current state of CSS-in-JS + React
The React working group is officially advising against using runtime CSS-in-JS.
- Warning abt setting state of unmounted component
What are some alternatives?
jscodeshift - A JavaScript codemod toolkit.
Preact - ⚛️ Fast 3kB React alternative with the same modern API. Components & Virtual DOM.
Acorn - A small, fast, JavaScript-based JavaScript parser
htmx - </> htmx - high power tools for HTML
react-gradual-upgrade-demo - Demonstration of how to gradually upgrade an app to a new version of React
petite-vue - 6kb subset of Vue optimized for progressive enhancement
codemod-example - Codemod for my article: https://blog.paulcodes.tech/all-about-abstract-syntax-tree
react-query - 🤖 Powerful asynchronous state management, server-state utilities and data fetching for TS/JS, React, Solid, Svelte and Vue. [Moved to: https://github.com/TanStack/query]
betaflight-configurator - Cross platform configuration tool for the Betaflight firmware
React - The library for web and native user interfaces.
js-codemod - Codemod scripts to transform code to next generation JS
zustand - 🐻 Bear necessities for state management in React