Create React App显示的是serviceWorker.js，而不是很多教程显示的registerServiceWorker [英] Create React App shows serviceWorker.js and not the registerServiceWorker that a lot of tutorials show

问题描述

当我想到我会使用Visual Studio Code来开始学习它等新的React JS应用程序时。我遇到了Microsoft网站 https://code.visualstudio.com/docs/nodejs/reactjs-tutorial 其中显示为

When I figured I would use Visual Studio Code to get a new React JS application started with learning it etc.. I ran across Microsoft site https://code.visualstudio.com/docs/nodejs/reactjs-tutorial In which this shows to

import registerServiceWorker from './registerServiceWorker';

同时，不存在，当我创建一个新的react应用时，它具有index.js

Meanwhile, there doesn't exist, when I create a new react app it has an index.js file with

import * as serviceWorker from './serviceWorker';
// 
serviceWorker.unregister();

1. 我不喜欢这么快地学习过时/过时的东西…有没有更好的最新地方来弄清楚我应该做些什么，以学习和有效地使用React JS？


2. 似乎 registerServiceWorker（ ）; 很常见，但这完全过时了吗？ registerServiceWorker在React JS中做什么？


3. 我真的想真正地调用Web api的Restful终结点，在哪里找到最佳实践来实现此目的呢？

1. I don't like learning something that is outdated /deprecated so quickly … Is there a much better up to date place to figure out what I am supposed to do to be learning and productively engaged with React JS?
2. Seems that registerServiceWorker(); was common but is this completely outdated? What does registerServiceWorker do in React JS?
3. I want to really just get into calling Restful endpoints of web api, what is a good place to do find best practices to do this?

推荐答案

serviceWorker支持是Create React App（CLI工具，而不是React本身）的一部分。它的官方文档很棒最新信息的地方：

The serviceWorker support is a part of Create React App (the CLI tool, not React itself). Its official docs are a great place for up-to-date information:

切换 serviceWorker.unregister（）转到 serviceWorker.register（）将选择您使用服务工作者。

switching serviceWorker.unregister() to serviceWorker.register() will opt you in to using the service worker.

<关于学习React，虽然有很多很棒的教程，但是您可以依靠 official教程以始终反映最新版本。

As for learning React, while there are a number of great tutorials out there, you can rely on the official tutorial to always reflect the latest version.

React只是一个视图库，并未规定发出HTTP请求的标准方法。您可以使用任何流行的请求库，也可以只使用普通的获取API ，React会很好玩。

React, being just a view library, doesn't prescribe a standard way to make HTTP requests. You can use any popular request library or just plain old Fetch API, and React will play nice with it.

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