Inferno is a fast and lightweight JavaScript library for building user interfaces. It is designed to have a similar API to React but with a focus on performance optimization. Inferno boasts a small bundle size and efficient rendering capabilities, making it ideal for high-performance applications. It provides features like virtual DOM, server-side rendering, and component lifecycle methods.
Svelte is a radical approach to building user interfaces. It is a compiler that takes declarative components and converts them into highly efficient imperative code that directly manipulates the DOM. This results in minimal overhead and blazing-fast performance, as Svelte shifts the work from the browser to the build step. Svelte's reactive declarations and reactivity system enable automatic updates to the DOM when data changes, without the need for a virtual DOM.
Both Inferno and Svelte are popular choices in the JavaScript community, but React has a larger user base and is more widely adopted. React has been around for a longer time and has a strong ecosystem with a large number of contributors and libraries built on top of it.
Size
Inferno is known for its small size and lightweight nature. It is designed to be a drop-in replacement for React, providing similar functionality with a smaller footprint. Svelte, on the other hand, is also lightweight and focuses on compiling components to highly efficient JavaScript code, resulting in smaller bundle sizes.
Performance
Both Inferno and Svelte are known for their excellent performance. Inferno is specifically designed to be highly performant, aiming to provide a faster rendering experience compared to React. Svelte takes a different approach by compiling components to optimized JavaScript code, resulting in faster initial load times and efficient updates.
Developer Experience
React has a mature and well-documented ecosystem, with a wide range of tools, libraries, and resources available. Inferno aims to provide a similar developer experience to React, making it easy for React developers to switch. Svelte, on the other hand, has a unique approach with its declarative syntax and compiler, which can take some time to learn but offers a highly efficient development experience.
Learning Curve
React has a steeper learning curve compared to Inferno and Svelte, especially for beginners. React has a larger API surface and more complex concepts like virtual DOM and JSX. Inferno, being a React-like library, has a similar learning curve to React. Svelte has a different paradigm and requires understanding of its compiler and reactive programming concepts, which may take some time to grasp.
Community and Ecosystem
React has a massive and active community, with a vast number of open-source libraries, tools, and resources available. It has a strong backing from Facebook and is widely adopted in the industry. Inferno has a smaller but dedicated community, with a growing ecosystem of libraries and tools. Svelte, although relatively newer, has gained significant popularity and has an active community with a growing ecosystem.
