react-hooks-testing-library
Immer
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react-hooks-testing-library | Immer | |
---|---|---|
18 | 141 | |
5,186 | 26,803 | |
0.4% | 1.0% | |
1.5 | 7.2 | |
about 2 months ago | 2 days ago | |
TypeScript | JavaScript | |
MIT License | MIT License |
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react-hooks-testing-library
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The Art of Side Effects in React.js: Understanding and Using the useEffect Hook
While generally it's recommended to test the component using the hooks rather than the hooks themselves, sometimes you might find it necessary to test custom hooks directly. For such cases, there's React Hooks Testing Library. This library allows you to create a simple test harness for React hooks that handles running them within the body of a function component, as well as updating and unmounting them.
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Test your React hooks with Vitest efficiently
To do so, we can install and use Render hooks from React Testing Library:
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Domain Layer and React? Decorators to the Rescue!
Of course, you could isolate the logic inside a hook, and there's an awesome way of testing it with renderHook. But yet, you're trapped into react features, if they change their API, you will have to put your hands in your working logic and adapt some stuffs to keep up to date.
- what's your take on the tdd approach? how are tests tested ?
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Testing Functions within Functional React Components
Relocating functions to a custom hook makes them accessible for testing (plus you’re keeping business logic separate from the UI, in accordance with best practices). There’s even a library to help with testing custom hooks: react-hooks-testing-library.
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Writing useful custom React hooks with TypeScript and testing them with React Testing Library
Next, we need to install react-hooks-testing-library package. It's a simple testing utility that allows testing hooks with ease. You can read more about this package here.
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A Quick Guide to Testing Custom React Hooks
Use @testing-library/reacthooks
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Stop Overcomplicating your State – Try Zustand
To test our store using jest, we’ll need some packages. React testing library Rect testing - hooks
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React | Write a unit test for custom hooks in ten minutes
When you installed and we can start to write unit tests! There are two methods we need to know in react-hooks-testing-library. The first is renderHook, the second is act:
Immer
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Immer VS mutative - a user suggested alternative
2 projects | 25 Jan 2024
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Show HN: Cami.js – A No Build, Web Component Based Reactive Framework
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It looks like it’s mutating, but both the reducers and update() uses immer* under the hood, so we still respect immutability under the hood.
Cami supports redux devtools so you can use that for time-travel debugging too!
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- Why do we need modules at all?
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Making Sense of React Server Components
I heard that immutability libraries like immer.js [0] help with this. Anyone go this way and had good success? Is this 'the way'?
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The sword refers to immer, the faster and stronger immutable data js tool limu stable version released!
But is immer really the ultimate answer? The performance problem of immer is more prominent in large arrays and deep-level object scenarios. See this issue description, many authors in the community began to try to make breakthroughs, and noticed that structura and mutative, I found that it is indeed many times faster than immer as they said, but it still fails to solve the problem of both fast speed and good development experience. I will analyze the two issues in detail below.
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Ramda: A practical functional library for JavaScript programmers
I like immer for this kind of thing: https://github.com/immerjs/immer
It gives you immutable updates without getting bogged down in FP abstractions.
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Is there a better way to do read-only types
If you're trying to make things actually immutable, Object.freeze and deep copies can clutter things up pretty good, have you considered using something like immer? (https://immerjs.github.io/immer/)
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5 React Libraries to Level Up your Projects in 2023
If you want to set up from Context, Zustand is your best bet. It offers an extremely simple API that lets you create a store with values and functions. Then, you can access that store from anywhere in your application to read and write values. Reactivity included! If you want to store nested object data in your store, consider using Immer alongside Zustand to easily change nested state.
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What are some of the best libraries you cannot work without?
immer
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How to synchronize access to application data in multithreaded asio?
I don't know about immer, do you mean the JavaScript library immer?
What are some alternatives?
immutability-helper - mutate a copy of data without changing the original source
immutable-js - Immutable persistent data collections for Javascript which increase efficiency and simplicity.
redux-toolkit - The official, opinionated, batteries-included toolset for efficient Redux development
Recoil - Recoil is an experimental state management library for React apps. It provides several capabilities that are difficult to achieve with React alone, while being compatible with the newest features of React.
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]
zustand - 🐻 Bear necessities for state management in React
valtio - 💊 Valtio makes proxy-state simple for React and Vanilla
mori - ClojureScript's persistent data structures and supporting API from the comfort of vanilla JavaScript
redux-saga - An alternative side effect model for Redux apps
reselect - Selector library for Redux
JSON-Schema Faker - JSON-Schema + fake data generators