In the below-given example code, The useState(0) will return a tuple where the count is the first parameter that represents the counter’s current state and the second parameter setCounter method will allow us t
React Interview Questions For the record, asking someone these questions probably isn't the best way to get a deep understanding of their experience with React. React Interview Questions just seemed like a better title than Things you may or may not need to know in React, but you may find ...
英文| https://blog.stackademic.com/top-40-reactjs-interview-questions-and-answers-for-2024-70c94e5fccca ReactJS 已成为现代 Web 开发的基石,其基于组件的架构和高效的渲染使其成为构建动态用户界面的首选。 无论你是希望提高技能的经验丰富的开发人员,还是准备即将到来的 ReactJS 面试的求职者,本指南都将...
英文| https://blog.stackademic.com/top-40-reactjs-interview-questions-and-answers-for-2024-70c94e5fccca ReactJS 已成为现代 Web 开发的基石,其基于组件的架构和高效的渲染使其成为构建动态用户界面的首选。 无论你是希望提高技能的经验丰富的开发人员,还是准备即将到...
Wrap components that might throw errors with the ErrorBoundary: function App() { return ( <ErrorBoundary> <SomeComponent /> </ErrorBoundary> ); } Example: E-Commerce Checkout Process: In a large e-commerce application, the checkout process involves multiple components: cart summary, payment...
A higher-order component (HOC) is a function that takes a component as an argument and returns a new component that wraps the original component with additional functionality. For example, an HOC could be used to add a loading indicator to a component that fetches data from an API. The HOC...
This ensures that the component re-renders with the new data. Here's a simple example: import React, { useState, useEffect } from 'react'; function DataFetchingComponent() { const [data, setData] = useState(null); const [loading, setLoading] = useState(true); useEffect(() => { async...
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Basically it just provides syntactic sugar for the React.createElement() function, giving us expressiveness of JavaScript along with HTML like template syntax. In the example below text inside tag return as JavaScript function to the render function. class App extends React.Component { render() {...
1.1: Share an example of a real-world project where you significantly benefited from using React Hooks, and how did it improve the project’s maintainability and performance? Expected Answer:In a recent e-commerce project, we replaced class components with Hooks. This made the codebase more ...