weixin_49655243的博客

Updating with the useEffect dependency array Fetching data with useEffect Using useReducer Deploying a React app

Understanding array destructuring 了解数组解构 Using useState Using multiple state variables Working with useEffect

Creating a React component Understanding properties Composing components Rendering lists Rendering list of objects Adding keys Conditional rendering React fragments

import React from "react"; import ReactDOM from "react-dom"; import "./index.css"; ReactDOM.render( React.createElement("h1", { style: { color: "red" } }, "Hello123!"), document.getElementById("root") ); // => Rendering multiple React elements Reac

React.js learning notes