目录

1.安装ESLint插件（重启vs生效）

2.配置.eslintrc.js

3.配置settings.json

4.修改package.json，加入--fix自动修复

5.现在保存就会自动修复

6.禁用格式化

---

1.安装ESLint插件（重启vs生效）

在vscode中安装插件ESLint

2.配置.eslintrc.js

windows：ctrl+p

macos：command+p

打开.eslintrc.js

// https://eslint.org/docs/user-guide/configuring

module.exports = {
  root: true,
  parserOptions: {
    parser: 'babel-eslint'
  },
  env: {
    browser: true
  },
  extends: [
    // https://github.com/vuejs/eslint-plugin-vue#priority-a-essential-error-prevention
    // consider switching to `plugin:vue/strongly-recommended` or `plugin:vue/recommended` for stricter rules.
    'plugin:vue/essential',
    // https://github.com/standard/standard/blob/master/docs/RULES-en.md
    'standard'
  ],
  // required to lint *.vue files
  plugins: ['vue'],
  // add your custom rules here
  rules: {
    // allow async-await
    'no-console': 'off',
    indent: ['error', 2, { SwitchCase: 1 }],
    semi: ['error', 'always'],
    'space-before-function-paren': [
      'error',
      { anonymous: 'always', named: 'never' }
    ],
    'generator-star-spacing': 'off',
    // allow debugger during development
    'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off'
  }
}

3.配置settings.json

// {
//     "window.zoomLevel": 0,
//     "cmake.configureOnOpen": true,
//     "editor.renderControlCharacters": true,
//     "editor.renderWhitespace": "all",
//     "editor.tabSize": 2
// }
{
  // vscode默认启用了根据文件类型自动设置tabsize的选项
  "editor.detectIndentation": false,
  // 重新设定tabsize
  "editor.tabSize": 2,
  // #每次保存的时候自动格式化
  "editor.formatOnSave": true,
  // #每次保存的时候将代码按eslint格式进行修复
  "eslint.autoFixOnSave": true,
  // 添加 vue 支持
  "eslint.validate": [
    "javascript",
    "javascriptreact",
    {
      "language": "vue",
      "autoFix": true
    }
  ],
  //  #让prettier使用eslint的代码格式进行校验
  "prettier.eslintIntegration": true,
  //  #去掉代码结尾的分号
  "prettier.semi": false,
  //  #使用带引号替代双引号
  "prettier.singleQuote": true,
  //  #让函数(名)和后面的括号之间加个空格
  "javascript.format.insertSpaceBeforeFunctionParenthesis": false,
  // #让vue中的js按编辑器自带的ts格式进行格式化
  "vetur.format.defaultFormatter.js": "vscode-typescript",
  "vetur.format.defaultFormatterOptions": {
    "js-beautify-html": {
      "wrap_attributes": "force-aligned"
      // #vue组件中html代码格式化样式
    }
  },
  "window.zoomLevel": 0,
  "explorer.confirmDelete": false,
  "explorer.confirmDragAndDrop": false,
  "editor.renderControlCharacters": true,
  "editor.renderWhitespace": "all",
  "editor.codeActionsOnSave": {
    "source.fixAll.eslint": true
  }
}

4.修改package.json，加入--fix自动修复

"lint": "eslint --ext .js,.vue src --fix",

完整一点的内容是：

{
  "name": "shower",
  "version": "1.0.0",
  "description": "A Vue.js project",
  "author": "",
  "private": true,
  "scripts": {
    "dev": "webpack-dev-server --inline --progress --config build/webpack.dev.conf.js",
    "start": "npm run dev",
    "lint": "eslint --ext .js,.vue src --fix",
    "build": "node build/build.js"
  },
  "dependencies": {
    "ant-design-vue": "^1.7.7",
    "echarts": "^3.5.4",
    "element-ui": "^1.2.9",
    "time-formater": "^1.0.1",
    "vue": "^2.2.6",
    "vue-quill-editor": "^2.2.1",
    "vue-router": "^2.8.1",
    "vue-simplemde": "^0.3.8",
    "vuex": "^2.5.0"
  },
  "devDependencies": {
    "autoprefixer": "^7.1.2",
    "babel-core": "^6.22.1",
    "babel-eslint": "^8.2.1",
    "babel-helper-vue-jsx-merge-props": "^2.0.3",
    "babel-loader": "^7.1.1",
    "babel-plugin-syntax-jsx": "^6.18.0",
    "babel-plugin-transform-runtime": "^6.22.0",
    "babel-plugin-transform-vue-jsx": "^3.5.0",
    "babel-preset-env": "^1.3.2",
    "babel-preset-stage-2": "^6.22.0",
    "chalk": "^2.0.1",
    "copy-webpack-plugin": "^4.0.1",
    "css-loader": "^0.28.0",
    "eslint": "^4.15.0",
    "eslint-config-standard": "^10.2.1",
    "eslint-friendly-formatter": "^3.0.0",
    "eslint-loader": "^1.7.1",
    "eslint-plugin-import": "^2.7.0",
    "eslint-plugin-node": "^5.2.0",
    "eslint-plugin-promise": "^3.4.0",
    "eslint-plugin-standard": "^3.0.1",
    "eslint-plugin-vue": "^4.0.0",
    "extract-text-webpack-plugin": "^3.0.0",
    "file-loader": "^1.1.4",
    "friendly-errors-webpack-plugin": "^1.6.1",
    "html-webpack-plugin": "^2.30.1",
    "less": "^4.1.1",
    "less-loader": "^10.0.1",
    "node-notifier": "^5.1.2",
    "optimize-css-assets-webpack-plugin": "^3.2.0",
    "ora": "^1.2.0",
    "portfinder": "^1.0.13",
    "postcss-import": "^11.0.0",
    "postcss-loader": "^2.0.8",
    "postcss-url": "^7.2.1",
    "rimraf": "^2.6.0",
    "semver": "^5.3.0",
    "shelljs": "^0.7.6",
    "uglifyjs-webpack-plugin": "^1.1.1",
    "url-loader": "^0.5.8",
    "vue-loader": "^13.3.0",
    "vue-style-loader": "^3.0.1",
    "vue-template-compiler": "^2.5.2",
    "webpack": "^3.6.0",
    "webpack-bundle-analyzer": "^2.9.0",
    "webpack-dev-server": "^2.9.1",
    "webpack-merge": "^4.1.0"
  },
  "engines": {
    "node": ">= 6.0.0",
    "npm": ">= 3.0.0"
  },
  "browserslist": [
    "> 1%",
    "last 2 versions",
    "not ie <= 8"
  ]
}

5.现在保存就会自动修复

6.禁用格式化（重启生效）

有时不想格式化代码了，因为自动格式化代码会对一些老项目产生影响，还是很烦人的。

把settings.json改回去：

{
  "window.zoomLevel": 0,
  "cmake.configureOnOpen": true,
  "editor.renderControlCharacters": true,
  "editor.renderWhitespace": "all",
  "editor.tabSize": 2
}