How to use componentDidCatch in React Applications?

Prerequisites

NodeJS or NPMReactJSJSXReact JS lifecycle...

How does the componentDidCatch method work?

The componentDidCatch lifecycle method allows a React component to catch and handle errors that occur while rendering its child components. Here’s how it works:...

How to use componentDidCatch in React Applications?

Step 1: Create a new React application using Create React App....

Approach:

Define a component that extends React’s Component class and implements componentDidCatch to handle errors within its child components.Initialize a state variable in the Error Boundary Component to track whether an error has occurred (hasError: false).Inside componentDidCatch, update the state to indicate that an error has occurred (this.setState({ hasError: true })) and handle the error (e.g., log it to the console or send it to an error tracking service).In the render method of the Error Boundary Component, check if an error has occurred (this.state.hasError) and render a fallback UI (e.g., an error message) instead of the child components if needed.Surround components or parts of your application where you want to catch errors with the Error Boundary Component. This ensures that any errors occurring within that boundary are caught and handled gracefully, preventing the entire app from crashing....

When componentDidCatch is useful?

componentDidCatch is useful in various situations where you want to gracefully handle errors that occur during the rendering of a React component tree. Some common scenarios where componentDidCatch is beneficial include:...