¿Debería utilizar React PureComponent?

Should I use React PureComponent?

To sum it up, PureComponent is useful when: You want to avoid re-rendering cycles of your component when its props and state are not changed, and. The state and props of your component are immutable, and. You don’t plan to implement your own shouldComponentUpdate lifecycle method.

Pure Components in React are the components which do not re-renders when the value of state and props has been updated with the same values. If the value of the previous state or props and the new state or props is the same, the component is not re-rendered.

While Reactjs is basically a JavaScript library and React Native is the entire framework, the former is the heart of the latter, and compliments each other. If Reactjs is optimal for creating apps with high functionality and complex calculations, then React Native is ideal to give a native feeling to your mobile apps.

No, functional components are not PureComponent s. Functional components will always get re-render if the parent component re-renders.

Prevents re-rendering of Component if props or state is the same

Component. In React, a component is referred to as an isolated piece of code which can be reused in one or the other module. The React application contains a root component in which other subcomponents are included; for example – in a single page, the application is subdivided into 3 parts – Header, Main Content, and Footer.

React lets you define components as classes or functions. Components defined as classes currently provide more features which are described in detail on this page. To define a React component class, you need to extend React.Component: The only method you must define in a React.Component subclass is called render().

React Hooks are functions that let us hook into the React state and lifecycle features from function components. By this, we mean that hooks allow us to easily manipulate the state of our functional component without needing to convert them into class components.