{
"name": "parcel-example-react-helloworld",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"react": "^16.2.0",
"react-dom": "^16.2.0"
- }
+ },
+ "devDependencies": {
+ "babel-preset-react": "^6.24.1"
+ }
}
5. 添加 Parcel
yarn：
yarn add parcel-bundler -D
npm:
npm install parcel-bundler --D
此时 package.json 文件内容：
{
"name": "parcel-example-react-helloworld",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"react": "^16.2.0",
"react-dom": "^16.2.0"
},
"devDependencies": {
- "babel-preset-react": "^6.24.1"
+ "babel-preset-react": "^6.24.1",
+ "parcel-bundler": "^1.0.3"
}
}
6. 新建 index.html 文件
内容
<html> <body> <div id="root"></div> <script src="./index.js"></script> </body> </html>
7. 新建 index.js 文件
import React from "react";
import ReactDOM from "react-dom";
const App = () => {
return <h1>Hello World!</h1>;
};
ReactDOM.render(<App />, document.getElementById("root"));
8. 添加打包命令
{
"name": "parcel-example-react-helloworld",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
- "test": "echo \"Error: no test specified\" && exit 1"
+ "start": "parcel index.html"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"react": "^16.2.0",
"react-dom": "^16.2.0"
},
"devDependencies": {
"babel-preset-react": "^6.24.1"
"babel-preset-react": "^6.24.1",
"parcel-bundler": "^1.0.3"
}
}
9. 完成
运行
yarn start
或
npm start
在浏览器中打开 http://localhost:1234
打包过程会生产 .cache 和 dist 两个目录，如果是 git 工程，可以新建 .gitignore 文件忽略这两个目录：
.cache dist node_modules
GitHub 地址: https://github.com/justjavac/parcel-example/tree/master/react-helloworld
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持黑区网络。