jest
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jest | Express | |
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471 | 668 | |
43,465 | 63,507 | |
0.5% | 1.0% | |
9.6 | 7.6 | |
about 19 hours ago | 2 days ago | |
TypeScript | 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.
jest
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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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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.
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Dissecting the hell that is Jest setup with ESM and Typescript
SimenB. "Support ESM versions of all pluggable modules" Mar 7, 2021
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Migrating from Jest to Vitest for your React Application
Are you looking to migrate from Jest to Vitest for your React application? Look no further.
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DweebUI v0.07 - A simple Docker web interface.
I am referring to code tests--for javascript I use https://jestjs.io/
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💻 7 Open-Source DevTools That Save Time You Didn't Know to Exist ⌛🚀
🌟 Support on GitHub Website: https://jestjs.io/
Express
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Full Stack Web Development Concept map
express - one of the most popular middleware tools, lightweight and easy to learn. docs
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How to convert exist nodejs/expressjs app from javascript to typescript, the painless way
Converting a large Express.js application from JavaScript to TypeScript can be a challenging task. For many applications, this represents a significant portion of their technical debt, as the process may span many days, if not months, and new changes are typically not allowed during the conversion.
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Why I keep an eye on the Vue ecosystem and you should too
Nitro is a nice https webserver that you can deploy everywhere. Comparing it to express, it doesn't need weird middlewares for json, it has a simple way to support caching, a file system router, tasks and scheduled tasks that avoid quite a few shell scripts, db:migrations etc, plugins, KV storages, SQL connectors, websockets...
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Meteor v3 uses express under the hood – How to use and deploy it.
As you might have seen from this PR and in our forums Meteor v3(it is still in beta, but you can follow the progress here) will be released with a new engine, expressjs.
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Um júnior e um teste técnico: The battle.
Express JS
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The Ultimate Roadmap to a Full-Stack Developer
Express.js Documentation - Official documentation for Express.js, a minimal and flexible Node.js web application framework for backend development. Express.js Documentation
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Preventing SQL injection attacks in Node.js
To better understand how SQL injection works, let's quickly create a vulnerable app using Node.js, Express, and a PostgreSQL database. The application takes user input from a form, constructs a SQL query, and executes it against the database to fetch some data.
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WebSocket vs. HTTP communication protocols
Of course, this separation does depend on your application’s architecture. Consider a similar situation where your application and web server are implemented together in the same process, such as a Node.js Express app. A fatal error here will also terminate the web server, limiting the usefulness of the error that the client will receive.
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Rust GraphQL APIs for NodeJS Developers: Introduction
Actix-web, while not as feature-rich as NestJS, resembles lighter-weight frameworks such as Fastify or Express. This means much of the folder structure and architectural decisions are left to the developer. I recommend adopting a Model-Service-Resolver (MSR) structure for your application, consisting of:
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How to Handle File Uploads with Node.js and Express
Basic knowledge of JavaScript and Express
What are some alternatives?
Next.js - The React Framework
tap - Test Anything Protocol tools for node
vitest - Next generation testing framework powered by Vite.
SvelteKit - web development, streamlined
Nuxt.js - Nuxt is an intuitive and extendable way to create type-safe, performant and production-grade full-stack web apps and websites with Vue 3. [Moved to: https://github.com/nuxt/nuxt]
Cucumber.js - Cucumber for JavaScript
AdonisJs Application
Restify - The future of Node.js REST development
Sinon.JS - Test spies, stubs and mocks for JavaScript.
fastify - Fast and low overhead web framework, for Node.js
nyc - the Istanbul command line interface
Nest - A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScript 🚀