How does Fre compare to React in terms of performance?

Fre focuses on concurrent rendering and smaller bundle sizes, which can prevent UI blocking and improve performance in lightweight apps. However, React has more optimizations and a mature ecosystem for complex applications.

Fre vs Preact: which is better for small projects?

Fre offers concurrent rendering and time-slicing, while Preact prioritizes React compatibility. Choose Fre if you need advanced scheduling; Preact if you want near-identical React APIs with minimal size.

How to set up JSX with Fre in Vite?

Configure Vite's esbuild with jsxFactory set to 'h', jsxFragment to 'Fragment', and inject the import from Fre, as detailed in the README. This requires more manual effort than React's setup.

Does Fre support server-side rendering effectively?

Yes, Fre includes SSR hydration as mentioned, but it's a minimal implementation. For advanced SSR with features like streaming, React with frameworks like Next.js might be more robust.

What are the limitations of Fre's concurrent mode?

Fre's concurrent mode is based on coroutine scheduling, but it may lack the extensive testing and real-world optimization found in React's Concurrent Features, potentially leading to edge cases.

Can I use state management libraries like Redux with Fre?

Fre's hooks API allows integration with external libraries, but you'll likely need custom bindings since pre-built solutions are scarce compared to React's ecosystem.

Open-Awesome

fre

MITJavaScript2.8.9

A tiny concurrent UI library with fiber architecture for building performant web applications.

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3.8k stars347 forks0 contributors

What is fre?

Fre is a tiny concurrent UI library that implements fiber architecture for building performant web interfaces. It provides React-like APIs including hooks, virtual DOM, and Suspense while focusing on minimal bundle size and concurrent rendering capabilities. The library solves the problem of UI blocking by enabling time-sliced updates through coroutine scheduling.

Target Audience

Frontend developers building modern web applications who need React-like functionality with better performance characteristics and smaller bundle sizes. Particularly suitable for developers prioritizing concurrent rendering and minimal dependencies.

Value Proposition

Developers choose Fre for its combination of familiar React patterns with superior performance through concurrent rendering and extremely small bundle size. It offers a complete feature set including hooks, Suspense, and virtual DOM while being significantly lighter than alternatives.

Overview

:ghost: Tiny Concurrent UI library with Fiber.

Use Cases

Best For

Building performant web applications with concurrent rendering requirements
Projects needing React-like APIs with smaller bundle sizes
Implementing time-sliced UI updates to prevent blocking
Developing applications with Suspense-based code splitting
Creating lightweight component libraries with hooks support
Migrating from React to a more performant alternative

Not Ideal For

Projects requiring extensive third-party libraries and mature dev tools
Applications heavily dependent on TypeScript with comprehensive type definitions
Enterprise teams needing long-term support and guaranteed backward compatibility
Complex server-side rendering setups with advanced hydration beyond basics

Pros & Cons

Pros

Concurrent Rendering

Implements coroutine scheduling for time-sliced updates to prevent UI blocking, enabling smooth user experiences as emphasized in the README's features.

Minimal Bundle Size

Maintains an extremely small footprint while offering hooks and virtual DOM, evidenced by the brotli size badge showing optimized implementation.

Familiar React APIs

Provides hooks like useState and useEffect, Suspense, and Fragments, making it easy for React developers to adopt, as shown in usage examples.

Efficient Reconciliation

Uses a keyed diff algorithm that supports pre-processing and SSR hydration, contributing to performance optimizations highlighted in the features.

Cons

Limited Ecosystem

Has a smaller community and fewer third-party integrations compared to established frameworks like React, which can slow development and limit tooling options.

Sparse Documentation

The README is brief and links to an external wiki, lacking in-depth examples and comprehensive guides for complex use cases or troubleshooting.

JSX Configuration Overhead

Requires manual setup for JSX in build tools like Vite, as shown in the README, adding complexity compared to out-of-the-box solutions in React.

Potential Instability

As a smaller project with fewer contributors, it may experience more breaking changes or unpredictable maintenance, risking long-term reliability.

Open Source Alternative To

fre is an open-source alternative to the following products:

React

React is a JavaScript library for building user interfaces, particularly single-page applications where UI updates are efficient through its virtual DOM implementation.

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