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Key features and concepts of Preact include:
Virtual DOM: Like React, Preact uses a virtual DOM to efficiently update and render changes to the user interface. This allows for efficient updates without re-rendering the entire page.
Component-Based Architecture: Preact follows a component-based architecture, allowing developers to build reusable and modular UI components.
Lifecycle Methods: Preact provides lifecycle methods for components, allowing developers to control the behavior of components during different phases of their lifecycle.
Props and State: Preact components can accept props (properties) that are used to pass data and configuration to components. Components can also have internal state that can change over time.
Event Handling: Preact supports event handling, enabling developers to respond to user interactions and events such as clicks, form submissions, and more.
Reactivity: Preact offers a reactive programming model where components automatically update in response to changes in props or state.
Component Performance: Preact is optimized for performance and aims to minimize the amount of memory and CPU resources required for rendering components.
Small Bundle Size: One of Preact's primary advantages is its small bundle size. Preact's core library is smaller than React's, making it suitable for projects where minimizing bundle size is a priority.
Compatibility with React Ecosystem: Preact strives to be compatible with the React ecosystem, which means that many React libraries and tools can be used with Preact without major modifications.
Preact is often used in projects where performance and bundle size are critical factors, such as single-page applications, progressive web apps, and projects targeting mobile devices. While Preact may not offer all the features and optimizations of React, it provides a lightweight option for developers who want a React-like development experience with an emphasis on efficiency and speed.