React’s Lifecycle with Class-Based Components

In React, class-based components have a lifecycle with specific methods that are called at different stages of the component’s existence. These methods can be categorized into three main phases: Mounting, Updating, and Unmounting.

🔄 Mounting Phase

constructor: Initializes the component and sets up the initial state and props.

render: Describes what the UI should look like.

componentDidMount: Runs after the component is rendered, perfect for initializing network requests or integrating with other libraries.

🔥 Updating Phase

shouldComponentUpdate: This method allows you to control whether the component should re-render or not. It should return true or false. This helps to optimize performance by preventing unnecessary updates.

render: Re-renders the component to reflect the new state or props.

componentDidUpdate: Executes after the component updates, ideal for responding to changes or performing DOM operations.

💥 Unmounting Phase:

componentWillUnmount: Cleans up before the component is removed, such as cancelling network requests or removing event listeners.

⚡ Error Handling Phase:

componentDidCatch: Catches errors during rendering or in lifecycle methods, allowing you to handle them gracefully.

Guess the output when interacting with the component? Comment your answers below!