ts-migrate
jest
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ts-migrate | jest | |
---|---|---|
15 | 473 | |
5,301 | 43,553 | |
0.4% | 0.5% | |
4.6 | 9.6 | |
6 months ago | 6 days ago | |
TypeScript | TypeScript | |
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.
ts-migrate
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How to Do a TypeScript Conversion: an opinionated take on gradual conversions
Airbnb converted many millions of lines gradually using automation and wrote about it:
https://medium.com/airbnb-engineering/ts-migrate-a-tool-for-...
And also open sourced the tooling:
https://github.com/airbnb/ts-migrate
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Declaring static json imported "as const"
Are you migrating with ts-migrate?
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A Comparison of Node.js Environment Managers
When you migrate your entire project over to TypeScript, errors like "undefined is not a function", syntax errors, or reference errors should no longer exist in your codebase. Thankfully, this is not as daunting as it sounds. Migrating your entire Node.js application to TypeScript can be done incrementally so that you can start reaping the rewards immediately in crucial parts of the codebase. You can also adopt a tool like ts-migrate if you intend to perform the migration in one go.
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How We Migrated from Javascript and Flow to TypeScript at Osome
Flow to ts — helps to produce raw migration from Flow to TS files and reduces monkey job. TS migrate — helps convert JS files to Typescript files. A great introduction can be found here.
- Should a team of one (me) with some TS experience attempt to refactor a mid-size fullstack app (React & Node) to TypeScript?
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The Best Integration Testing Library for Serverless Projects Now Supports Typescript!
💡 I typed it using ts-migrate ts-migrate is a tool I strongly recommend. It's been developed by Airbnb to help to migrate easily JavaScript projects to TypeScript.
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Should I migrate to TS?
When you decide to migrate, I recommend checking https://github.com/airbnb/ts-migrate may speed few migration steps (but it wont solve missing types/interfaces)
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How to Overcome Your TypeScriptoPhobia
You can use AirBnb's ts-migrate tool or try a more direct tactic following the Migrating from JavaScript guide.
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[AskJS] Would a Javascript to Typescript Converter Be Useful?
Take a look at https://github.com/airbnb/ts-migrate
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A Comprehensive Guide To Error Handling In Node.js
When you migrate your entire project over to TypeScript, errors like "undefined is not a function", syntax errors, or reference errors should no longer exist in your codebase. Thankfully, this is not as daunting as it sounds. Migrating your entire Node.js application to TypeScript can be done incrementally so that you can start reaping the rewards immediately in crucial parts of the codebase. You can also adopt a tool like ts-migrate if you intend to perform the migration in one go.
jest
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What is an Abstract Syntax Tree in Programming?
GitHub | Website
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Top 10 Tools Every React Developer Needs in 2024
Jest
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API Testing with Clerk and Express
you have selected a testing framework. In my case, it's Jest with Supertest
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JS Toolbox 2024: Bundlers and Test Frameworks
Jest, created and maintained by Facebook, is a JavaScript testing framework with a focus on simplicity. It is often recognized for its zero-configuration setup and seamless integration, especially with React applications, making it a favored choice for developers in both small-scale projects and large enterprise applications.
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Testing library for Node.js and React
Jest (https://jestjs.io/)
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Unit Testing Expo Apps With Jest
console.error Jest encountered an unexpected token Jest failed to parse a file. This happens e.g. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax. Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration. By default "node\_modules" folder is ignored by transformers. Here's what you can do: • If you are trying to use ECMAScript Modules, see https://jestjs.io/docs/ecmascript-modules for how to enable it. • If you are trying to use TypeScript, see https://jestjs.io/docs/getting-started#using-typescript • To have some of your "node\_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config. • If you need a custom transformation specify a "transform" option in your config. • If you simply want to mock your non-JS modules (e.g. binary assets) you can stub them out with the "moduleNameMapper" config option. You'll find more details and examples of these config options in the docs: https://jestjs.io/docs/configuration For information about custom transformations, see: https://jestjs.io/docs/code-transformation
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Easily create mock data for unit tests 🧪
Note: I will be using Jest as testing framework throughout the examples.
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Painless CLI integration testing
We use Jest Framework for testing. Jest is not a dogma, and, of course, in its place can be any other test runner, such as Mocha or Ava. Let's focus on tests. I'll provide a short example because I don’t want to waste your time. You can find the full version here. It's crucial to read the comments in the code below. Let's go!
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What is integration testing in UI/Front End?
Jest has long been my favorite got to test runner when it comes to UI unit and integration testing. With tools like React Testing Library (Testing Library framework for React) you get the benefit of very easy to write and maintain tests, as well as a quick and efficient way to run our tests.
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13 best React debugging tools
Jest is a well-regarded JavaScript testing framework primarily designed for React applications, although its utility extends to projects using Babel, JavaScript, Node, Angular, and Vue. Created by Facebook, Jest emphasizes ensuring the correctness of JavaScript codebases. It allows developers to write tests with a familiar, feature-rich API, making the testing process swift and enjoyable.
What are some alternatives?
TypeStat - Converts JavaScript to TypeScript and TypeScript to better TypeScript. 🧫
tap - Test Anything Protocol tools for node
jscodeshift - A JavaScript codemod toolkit.
vitest - Next generation testing framework powered by Vite.
flow-to-typescript-codemod - Codemod Stripe used to migrate 6.5m+ lines of code from Flow to TypeScript
Cucumber.js - Cucumber for JavaScript
dependency-cruiser - Validate and visualize dependencies. Your rules. JavaScript, TypeScript, CoffeeScript. ES6, CommonJS, AMD.
Sinon.JS - Test spies, stubs and mocks for JavaScript.
mocha - ☕️ simple, flexible, fun javascript test framework for node.js & the browser
nyc - the Istanbul command line interface
astx - Super powerful structural search and replace for JavaScript and TypeScript to automate your refactoring
WebdriverIO - Next-gen browser and mobile automation test framework for Node.js