These packages help you write more robust and predictable code by providing tools for functional programming. They allow you to handle errors and data transformations in a more elegant way. By comparing them, you can choose the best fit for your project. Both packages are popular among experienced developers.
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react-query is a caching and data fetching library for React that provides a similar effect system to the effect package.
react-query is a good alternative to effect because it provides a similar effect system but with a focus on data fetching and caching. It's a more comprehensive solution that also provides caching and data fetching features.
State Managementredux-observable is a library that combines Redux and RxJS to provide a similar effect system to the effect package.
redux-observable is a good alternative to effect because it provides a similar effect system but with a more comprehensive set of features. It's a more complex solution that requires more learning and setup.
State Managementzustand is a small, fast, and scalable state management library that provides a similar effect system to the effect package.
zustand is a good alternative to effect because it provides a similar effect system but with a more lightweight footprint. zustand is also easier to learn and use.
State Managementeffect Core PackageThe effect package is the heart of the Effect framework, providing robust primitives for managing side effects, ensuring type safety, and supporting concurrency in your TypeScript applications.
TypeScript 5.4 or Newer: Ensure you are using a compatible TypeScript version.
Strict Type-Checking:
The strict flag must be enabled in your tsconfig.json. For example:
{ "compilerOptions": { "strict": true // ...other options } }
Install the core package using your preferred package manager. For example, with npm:
npm install effect
Website: For detailed information and usage examples, visit the Effect website.
API Reference:
For a complete API reference of the core package effect, see the Effect API documentation.
The effect package provides a collection of modules designed for functional programming in TypeScript. Below is a brief overview of the core modules:
| Module | Description | | -------- | -------------------------------------------------------------------------------------------------------------------------- | | Effect | The core abstraction for managing side effects, concurrency, and error handling in a structured way. | | Context | A lightweight dependency injection mechanism that enables passing services through computations without direct references. | | Layer | A system for managing dependencies, allowing for modular and composable resource allocation. | | Fiber | Lightweight virtual threads with resource-safe cancellation capabilities, enabling many features in Effect. | | Stream | A powerful abstraction for handling asynchronous, event-driven data processing. | | Schedule | A module for defining retry and repeat policies with composable schedules. | | Scope | Manages the lifecycle of resources, ensuring proper acquisition and release. | | Schema | A powerful library for defining, validating, and transforming structured data with type-safe encoding and decoding. |
For a comparison between effect/Schema and zod, see Schema vs Zod.