Approach to handle Error States
To use useState and useEffect , import it from the react library at the top of your component file:
import React, { useState,useEffect } from 'react';
Within your functional component, call useState with the initial state value as an argument. It returns an array containing two elements:
- The Current state value: Use this in your JSX to display the data dynamically.
- A State update function: Call this function to modify the state and trigger a re-render of the component.
React useState Hook Syntax:
const [error, setError] = useState(null);
The useEffect hook syntax accepts two arguments where the second argument is optional
React useEffect Hook Syntax:
useEffect(<FUNCTION>, <DEPENDECY>)
- FUNCTION: contains the code to be executed when useEffect triggers.
- DEPENDENCY: is an optional parameter, useEffect triggers when the given dependency is changed.
Handling Error using React useState and useEffect Hooks
In React, handling error states is very important to provide a smooth user experience and handle unexpected errors that may occur during data fetching or asynchronous operations. By using the useState and useEffect hooks, you can easily manage error states in your React applications.
In this article, we’ll explore how to handle error states using the useState
and useEffect
hooks in React.
Table of Content
- What are Error States?
- Using useState and useEffect Hooks
- Approach to handle Error States
- Steps to Create React App and handle Errors
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