react-codemod
karma
react-codemod | karma | |
---|---|---|
9 | 9 | |
4,059 | 11,919 | |
0.1% | 0.0% | |
3.2 | 5.0 | |
3 days ago | about 2 months ago | |
JavaScript | JavaScript | |
MIT License | 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
karma
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How to Fetch Data from an API in Angular
Run ng test to execute the unit tests via Karma.
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Increase coverage on every feature with Karma/Jest and Husky
This is an example for those using Karma:
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Front-end Guide
Karma
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A simpler and smaller Angular starter with ngLite
While the default Angular starter includes unit tests, it makes use of the older and clunky Karma/Jasmine combo for unit testing.
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Can Protractor and Karma be used together?
If Protractor is replacing Angular Scenario Runner for E2E testing, does that mean I will still be able to use it with Karma as my E2E testing framework ?
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Firefox 99.0 released
They are tools for automated testing of websites/webapps: https://karma-runner.github.io https://www.cypress.io
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Angular Web3
Run ng test to execute the unit tests via Karma.
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Advanced Roadmap for React.js developers
iii. Integration Testing -Karma
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The React roadmap for beginners you never knew you needed.
Karma
What are some alternatives?
jscodeshift - A JavaScript codemod toolkit.
puppeteer - Node.js API for Chrome
Acorn - A small, fast, JavaScript-based JavaScript parser
Playwright - Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.
react-gradual-upgrade-demo - Demonstration of how to gradually upgrade an app to a new version of React
WebdriverIO - Next-gen browser and mobile automation test framework for Node.js
codemod-example - Codemod for my article: https://blog.paulcodes.tech/all-about-abstract-syntax-tree
nightwatch - Integrated end-to-end testing framework written in Node.js and using W3C Webdriver API. Developed at @browserstack
betaflight-configurator - Cross platform configuration tool for the Betaflight firmware
ava - Node.js test runner that lets you develop with confidence 🚀
js-codemod - Codemod scripts to transform code to next generation JS
intern - A next-generation code testing stack for JavaScript.