我开始玩Create React App,但我无法理解它index.js是如何加载的index.html.HTML代码是这样的:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
<!--
Notice the use of %PUBLIC_URL% in the tag above.
It will be replaced with the URL of the `public` folder during the build.
Only files inside the `public` folder can be referenced from the HTML.
Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
work correctly both with client-side routing and a non-root public URL.
Learn how to configure a …我在互联网上的某个地方读到index.html了 React 应用程序的入口点。然而，同一篇文章接着说这index.js是主要入口点（以及大多数节点应用程序）。那么是哪一个呢？
当有人在浏览器中加载 React 应用程序时，我假设index.js首先运行，然后加载index.html. 但是这通常是如何发生的......就像在浏览器中加载应用程序到第一次运行的流程一样index.js？
索引.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="theme-color" content="#000000" />
<meta
name="description"
content="Web site created using create-react-app"
/>
<link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
<link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
<title>React App</title>
</head>
<body>
<noscript>You need to enable JavaScript to run this app.</noscript>
<div id="root"></div>
</body>
</html>
索引.js
import React from 'react';
import ReactDOM from …