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what is error boundaries in react

ASHABB answered on February 16, 2023 Popularity 8/10 Helpfulness 2/10

answer what is error boundaries in react

related What are error boundaries in React v16?

what is error boundaries in react

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que - what is error boundaries in react

ans - Error boundaries are a feature in React that allow you to catch 
JavaScript errors anywhere in the component tree, log those errors,
and display a fallback UI instead of crashing the entire application.
They are particularly useful for ensuring that your app remains
functional even when part of it encounters an error.

eg -
//--code
import React, { Component } from 'react';

class ErrorBoundary extends Component {
    constructor(props) {
        super(props);
        this.state = { hasError: false };
    }

    static getDerivedStateFromError(error) {
        // Update state so the next render shows the fallback UI
        return { hasError: true };
    }

    componentDidCatch(error, errorInfo) {
        // You can also log the error to an error reporting service
        console.log(error, errorInfo);
    }

    render() {
        if (this.state.hasError) {
            // You can render any custom fallback UI
            return <h1>Something went wrong.</h1>;
        }

        return this.props.children; 
    }
}

export default ErrorBoundary;

//--import React from 'react';
import ErrorBoundary from './ErrorBoundary';
import MyComponent from './MyComponent';

function App() {
    return (
        <ErrorBoundary>
            <MyComponent />
        </ErrorBoundary>
    );
}

export default App;

Popularity 8/10 Helpfulness 2/10 Language javascript

Source: ashabb.com

Tags: boundaries javascript

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Contributed on May 31 2024

ASHABB

0 Answers Avg Quality 2/10

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What are error boundaries in React v16?

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class ErrorBoundary extends React.Component {
  constructor(props) {
    super(props);
    this.state = { hasError: false };
  }

  componentDidCatch(error, info) {
    // You can also log the error to an error reporting service
    logErrorToMyService(error, info);
  }

  static getDerivedStateFromError(error) {
    // Update state so the next render will show the fallback UI.
    return { hasError: true };
  }

  render() {
    if (this.state.hasError) {
      // You can render any custom fallback UI
      return <h1>{"Something went wrong."}</h1>;
    }
    return this.props.children;
  }
}

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: boundaries b

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Contributed on Feb 16 2023

Sumit Rawal

0 Answers Avg Quality 2/10

what is error boundaries in react

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