Angular
Deliver web apps with confidence 🚀 (by angular)
jest
Delightful JavaScript Testing. (by jestjs)
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Angular | jest | |
---|---|---|
699 | 473 | |
94,464 | 43,581 | |
0.8% | 0.5% | |
10.0 | 9.5 | |
6 days ago | about 11 hours ago | |
TypeScript | TypeScript | |
MIT License | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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.
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.
Angular
Posts with mentions or reviews of Angular.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-03-16.
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Angular Signals, Reactive Context, and Dynamic Dependency Tracking
/** * https://github.com/angular/angular/blob/75a186e321cb417685b2f13e9961906fc0aed36c/packages/core/src/render3/reactivity/untracked.ts#L15 * * packages/core/src/render3/reactivity/untracked.ts * **/ export function untracked(nonReactiveReadsFn: () => T): T { const prevConsumer = setActiveConsumer(null); try { return nonReactiveReadsFn(); } finally { setActiveConsumer(prevConsumer); } }
- Episode 24/15: Wiz behind the curtain, Copilot in VSCode
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Always unsubscribe. No exceptions. Debate closed.
source: https://github.com/angular/angular/issues/46542
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Angular Signals: Best Practices
Besides the dangers, mentioned by Angular docs (infinite loops, change detection errors), there is another thing, that might be quite nasty: effects are executed in a reactive context, and any code you call in effect, will be executed in a reactive context. If that code reads some signals, they will be added as dependencies to your effect. Here Alex Rickabaugh explains the details.
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Understanding control flow syntax in Angular 17
In June 2023, the Angular team raised a new RFC to implement control flow syntaxes within Angular. They gave the following rationale for introducing control flow syntax:
- Episode 24/09: Testing without TestBed, SSR & Hydration
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Preparing our Code for Zoneless Angular
For scheduling, I use awesome code I found in the Angular source code.
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⏰ It’s time to talk about Import Map, Micro Frontend, and Nx Monorepo
Just to give you more context, I led the migration of several AngularJS applications to the newer Angular Framework. My client finally decided to make that move following the AngularJS deprecation announcement (stay up to date please 🙏)️.
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Conventional commit specification
Link — angular/CONTRIBUTING.md
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Angular Control Flow: the complete guide
Angular v17 was released some months ago with a ton of new features, a brand new logo and the new blog angular.dev.
jest
Posts with mentions or reviews of jest.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-04-05.
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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?
When comparing Angular and jest you can also consider the following projects:
Next.js - The React Framework
tap - Test Anything Protocol tools for node
qwik - Instant-loading web apps, without effort
vitest - Next generation testing framework powered by Vite.
SvelteKit - web development, streamlined
Cucumber.js - Cucumber for JavaScript
Alpine.js - A rugged, minimal framework for composing JavaScript behavior in your markup.
Sinon.JS - Test spies, stubs and mocks for JavaScript.
solid - A declarative, efficient, and flexible JavaScript library for building user interfaces.
nyc - the Istanbul command line interface
lit - Lit is a simple library for building fast, lightweight web components.
WebdriverIO - Next-gen browser and mobile automation test framework for Node.js