eslint ，eslintrc，.eslintignore 及 如果有eslint错误，git 不能提交代码

对所有js文件进行校验
安装pre-commit插件的依赖

npm i --save-dev pre-commit

package.json

{
  "name": "nodetest",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "lint": "eslint . --fix",//对所有文件进行校验，及补缺
    "lint:create": "eslint --init"  //创建。eslintrc.js
  },
  "pre-commit": [
    "lint" //在git commit 时运行npm run lint 进行校验，若有错误不能提交
  ],
  "author": "shuah",
  "license": "ISC",
  "devDependencies": {
    "eslint": "^5.16.0",
    "pre-commit": "^1.2.2"
  },
  "dependencies": {
    "chalk": "^2.4.2"
  }
}

 

.eslintrc.js 文件

eslint 部分校验规则点这里

module.exports = {
  "env": {
    "browser": false,
    "node": true,
    "commonjs": true,
    "es6": true 
  },
  "extends": "eslint:recommended",
  "globals": {
      "Atomics": "readonly",
      "SharedArrayBuffer": "readonly"
  },
  "parserOptions": {
    "ecmaVersion": 2018
  },
  "rules": {
    "no-console": "off" ,
    // 所有引号使用双引号
    "quotes":[
      "error",
      "double"
    ],
    // 数组和对象键值对最后一个逗号， never参数：不能带末尾的逗号, always参数：必须带末尾的逗号，
    // always-multiline：多行模式必须带逗号，单行模式不能带逗号
    "comma-dangle": [1, "always-multiline"],
    // 禁用 alert、confirm 和 prompt
    "no-alert": 0,
    // 控制逗号前后的空格
    "comma-spacing": [2, {
      "before": false,
      "after": true
    }],
    // 控制逗号在行尾出现还是在行首出现 (默认行尾)
    // http://eslint.org/docs/rules/comma-style
    "comma-style": [2, "last"],
  }
};

.eslintignore 文件

不用校验的文件

node_modules
dist/
test
build/