Скачать или смотреть What is the getDerivedStateFromProps on update in life cycle reactjs

getDerivedStateFromProps in ReactJS:
getDerivedStateFromProps is a lifecycle method in React class components that is invoked after a component is instantiated and before it's re-rendered due to changes in props. This method is used to update the state of the component based on changes in props. It's a static method, meaning it doesn't have access to the component's instance, so it operates solely on the input props and the current state.

This method is often used when the component's state needs to be synchronized with the incoming props. However, it's important to use it judiciously, as excessive reliance on it can lead to complex and hard-to-understand component behavior. In many cases, using getDerivedStateFromProps can be replaced by other patterns, such as using controlled components or componentDidUpdate.

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#reactjs #lifecycles #components

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