了解 JavaScript 中的高阶组件和高阶函数

function greet(name) {    return `hello, ${name}!`;}function sayhello(fn, name) {    return fn(name);}console.log(sayhello(greet, 'alice')); // output: hello, alice!

import React from 'react';function withGreeting(WrappedComponent) {    return function EnhancedComponent(props) {        return (            <div>                <h1>Welcome!</h1>                <wrappedcomponent></wrappedcomponent></div>        );    };}const MyComponent = ({ name }) =&gt; <p>My name is {name}.</p><p><span>立即学习</span>“<a href="https://pan.quark.cn/s/c1c2c2ed740f" style="text-decoration: underline !important; color: blue; font-weight: bolder;" rel="nofollow" target="_blank">Java免费学习笔记（深入）</a>”；</p>;const EnhancedMyComponent = withGreeting(MyComponent);// Usage in a React app// <enhancedmycomponent name="Alice"></enhancedmycomponent>