React入门2-脚手架搭建

一.脚手架搭建

1.安装

npm i -g create-react-app

2.创建react应用

create-react-app xxx（工程名称）

a、主要依赖react,react-dom,react-scripts

{
  "name": "learn-react",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "react": "^16.8.4",
    "react-dom": "^16.8.4",
    "react-scripts": "2.1.8"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": [
    ">0.2%",
    "not dead",
    "not ie <= 11",
    "not op_mini all"
  ]
}

b.生成目录结构

3.本地启动

npm run start