#7 React JS Tutorial 2024 | Component Lifecycle | Hindi

React JS is a popular JavaScript library for building user interfaces. In this tutorial, we will focus on the component lifecycle in React.

Component Lifecycle Methods

React components have several lifecycle methods that allow developers to hook into different points in the component’s lifecycle. Some of the key lifecycle methods include:

• componentDidMount()
• componentDidUpdate()
• componentWillUnmount()

componentDidMount()

The componentDidMount() method is called after the component has been rendered to the DOM. This is a good place to make API calls or initialize any state that depends on the DOM being ready.

componentDidUpdate()

The componentDidUpdate() method is called after the component’s state or props have been updated. This is a good place to perform any side effects based on the changes in props or state.

componentWillUnmount()

The componentWillUnmount() method is called just before the component is removed from the DOM. This is a good place to clean up any resources used by the component, such as event listeners or timers.

Conclusion

Understanding the component lifecycle in React is important for building efficient and robust applications. By leveraging the lifecycle methods provided by React, developers can ensure that their components are well-optimized and performant.