Câu hỏi phỏng vấn Reactjs
Câu hỏi

What does it mean for a component to be mounted in React

Câu trả lời

In React, for a component to be mounted means that it has been initialized and inserted into the DOM. The mounting phase is the initial stage of the component lifecycle where the instance of the component is created and added to the DOM tree. This phase includes the execution of constructor, the render method, and the componentDidMount lifecycle method.

When a component is successfully inserted into the DOM, it is considered to be mounted. At this point, the component begins to exist on the page and can interact with the DOM and other components. The componentDidMount method is particularly important as it is invoked immediately after a component is mounted, providing an opportunity to perfor...

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What are Error Boundaries in ReactJS?

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