How does leptos-use compare to VueUse for building web apps?

Leptos-Use is the Leptos equivalent of VueUse, offering similar composable utilities but in Rust for the Leptos framework. It has 89+ functions and SSR support, but it's specific to Leptos, whereas VueUse is for Vue in JavaScript, making it ideal for Rust developers adopting Leptos over Vue.

How to add mouse tracking to a Leptos component with leptos-use?

Use the use_mouse function, as shown in the README example. Import it from leptos-use, call it in your component, and access reactive x and y coordinates to easily integrate mouse position tracking into your UI.

Is leptos-use compatible with Leptos 0.8?

Yes, according to the compatibility table in the README, leptos-use versions 0.16 to 0.18 are compatible with Leptos 0.8. Always check the table for the latest mappings to avoid version conflicts.

What are the most useful functions in leptos-use for beginners?

Start with use_mouse for interactivity, use_storage for local persistence, and use_interval for timers. These are well-documented with demos and cover common web app needs, making them great for learning the library.

How to contribute a new function to leptos-use?

Use the template/createfn.sh script, which requires ffizer and Python, to scaffold the function, example, and book entry as per the README. Then, submit a PR—the project encourages community contributions, as noted in the 'Missing a function?' section.

Does leptos-use work without server-side rendering?

Yes, leptos-use functions can be used in client-side only apps, but SSR support is a key feature. You can disable SSR-related features if not needed, though some utilities like use_cookie are optimized for SSR contexts.

Open-Awesome

leptos-use

Apache-2.0Rustv0.18.3

A comprehensive collection of essential utilities for building reactive web applications with the Leptos framework.

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What is leptos-use?

Leptos-Use is a utility library for the Leptos framework, providing a collection of essential composable functions inspired by React-Use and VueUse. It solves common problems in reactive web development by offering ready-to-use utilities for state management, side effects, and browser interactions. The library is designed to enhance developer productivity when building applications with Leptos.

Target Audience

Developers building reactive web applications with the Leptos framework in Rust, particularly those who need efficient utilities for handling common frontend patterns and state management.

Value Proposition

Developers choose Leptos-Use for its comprehensive set of 89+ utilities that are specifically tailored for Leptos, seamless SSR support, and its inspiration from established libraries like React-Use and VueUse, ensuring familiar patterns in a Rust context.

Overview

Collection of essential Leptos utilities inspired by React-Use / VueUse

Use Cases

Best For

Adding reactive mouse tracking to Leptos components
Managing local storage with reactive bindings in Leptos apps
Implementing utility functions for server-side rendered Leptos applications
Handling browser events and APIs reactively in Leptos
Building composable logic for state management in Leptos
Migrating from React-Use/VueUse patterns to Leptos development

Not Ideal For

Projects not using the Leptos framework, as it's tightly coupled to Leptos' reactive system.
Teams preferring minimal dependencies and hand-rolled solutions for maximum control and lightweight builds.
Applications needing out-of-the-box UI components, since it provides only utilities without styling or pre-built interfaces.
Environments where server-side rendering is unnecessary and simpler, framework-agnostic libraries would suffice.

Pros & Cons

Pros

Extensive Function Library

Offers 89+ composable functions, as highlighted by the README badge, covering browser APIs, state management, and more, reducing boilerplate code.

SSR-First Design

Built with server-side rendering in mind, shown by the SSR badge and features, ensuring seamless integration with Leptos' SSR capabilities for performance and SEO.

Version Synchronization

The README includes a compatibility table mapping crate versions to Leptos releases, providing clear guidance for stability and updates.

Familiar Patterns

Inspired by React-Use and VueUse, it brings established utility patterns to Leptos, easing adoption for developers from those ecosystems.

Cons

Ecosystem Lock-in

Tied exclusively to Leptos, a niche framework in Rust, which limits community resources and broader third-party integrations compared to mainstream options.

Feature Flag Complexity

Testing and using certain functions, like SSR with Axum or Actix, require enabling multiple feature flags (e.g., --features ssr,axum), adding setup overhead as shown in the development commands.

Rapid Version Churn

The compatibility table indicates frequent updates aligned with Leptos releases, potentially leading to breaking changes and maintenance efforts for developers.

Frequently Asked Questions

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