VScode配置eslint保存自动格式化，eslint格式化去掉分号和双引号。vscode自动保存去掉分号和双引号；““

Dear 丶 2021-09-07 06:18 2133阅读 1赞

**1.必须安装的三个插件eslint， prettier-Code formatter ，vetur**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2lfYW1fYV9kaXY_size_16_color_FFFFFF_t_70]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2lfYW1fYV9kaXY_size_16_color_FFFFFF_t_70 1]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2lfYW1fYV9kaXY_size_16_color_FFFFFF_t_70 2]

**2.配置setting.json**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2lfYW1fYV9kaXY_size_16_color_FFFFFF_t_70 3]

**3.直接将下方代码复制，黏贴在setting.json文件中**  
ctrl+s保存时候，自动格式化+无分号+单引号：取决于 这三个设置

// 当保存代码的时候，会自动格式化
        "editor.formatOnSave": true,
        // 不添加分号
        "prettier.semi": false,
        // 使用单引号
        "prettier.singleQuote": true,

最好直接复用下面的配置，里面有eslint检验和自动修改配置

{ 
      "editor.quickSuggestions": { 
        "strings": true
      },
      "window.zoomLevel": 1,
      "[javascript]": { 
        "editor.defaultFormatter": "vscode.typescript-language-features"
      },
      "[css]": { 
        "editor.defaultFormatter": "michelemelluso.code-beautifier"
      },
      "files.autoSave": "afterDelay",
      "editor.suggestSelection": "first",
      "vsintellicode.modify.editor.suggestSelection": "automaticallyOverrodeDefaultValue",
      "[html]": { 
        "editor.defaultFormatter": "HookyQR.beautify"
      },
      // 本地配备eslint
      //自动保存的时候，eslint自动修复一些格式上的错误
      "eslint.alwaysShowStatus": true,
      "eslint.autoFixOnSave": true,
      // 每次保存的时候将代码按eslint格式进行修复
      "editor.codeActionsOnSave": { 
        "source.fixAll.eslint": true
      },
      "eslint.options": { 
      "extensions": [
      ".js",
      ".vue"
      ]
      },
      "eslint.validate": [
      "javascript",
      { 
      "language": "vue",
      "autoFix": true
      },
      "html",
      "vue"
      ],
      "emmet.includeLanguages": { 
        "javascript": "html",
        "wxml": "html"
      },
      "git.autofetch": true,
    
      "[vue]": { 
        "editor.defaultFormatter": "octref.vetur"
      },
      "workbench.colorTheme": "Default Dark+",
      "workbench.colorCustomizations": { 
    
      },
        // 关闭eslint
        // "eslint.enable": false,
    
    
      // tab一键成元素html标签
      "emmet.triggerExpansionOnTab": true,
      "files.associations": { 
        "*.cjson": "jsonc",
        "*.wxss": "css",
        "*.wxs": "javascript"
      },
      "minapp-vscode.disableAutoConfig": true,
      "[json]": { 
        "editor.defaultFormatter": "esbenp.prettier-vscode"
      },
       // 当保存代码的饿时候，会自动格式化
      "editor.formatOnSave": true,
      // 不添加分号
      "prettier.semi": false,
      // 使用单引号
      "prettier.singleQuote": true,
      // 解决Vue换行问题
      "vetur.format.defaultFormatter.html": "js-beautify-html",
      "vetur.format.defaultFormatter.js": "vscode-typescript",//解决配置默认格式化 js换行问题
      "vetur.format.defaultFormatterOptions": { 
          "js-beautify-html": { 
              "wrap_attributes": "auto"
          },
          "prettyhtml": { 
              "printWidth": 100,
              "singleQuote": false,
              "wrapAttributes": false,
              "sortAttributes": false
          }
      },
      "[typescript]": { 
        "editor.defaultFormatter": "esbenp.prettier-vscode"
      },
    }

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2lfYW1fYV9kaXY_size_16_color_FFFFFF_t_70 4]

**4.在你的项目下配置 .eslintrc.js 文件，此文件会用来在保存时候做eslint校验，具体配置网上很多[可参考此篇][Link 1]，我的配置如下：**

module.exports = { 
      root: true,
      parserOptions: { 
        parser: 'babel-eslint',
        sourceType: 'module'
      },
      env: { 
        browser: true,
        node: true,
        es6: true,
      },
      extends: ['plugin:vue/recommended', 'eslint:recommended'],
    
      // add your custom rules here
      //it is base on https://github.com/vuejs/eslint-config-vue
      rules: { 
        "vue/max-attributes-per-line": [2, { 
          "singleline": 10,
          "multiline": { 
            "max": 1,
            "allowFirstLine": false
          }
        }],
        "vue/singleline-html-element-content-newline": "off",
        "vue/multiline-html-element-content-newline":"off",
        "vue/name-property-casing": ["error", "PascalCase"],
        "vue/no-v-html": "off",
        'accessor-pairs': 2,
        'arrow-spacing': [2, { 
          'before': true,
          'after': true
        }],
        'block-spacing': [2, 'always'],
        'brace-style': [2, '1tbs', { 
          'allowSingleLine': true
        }],
        'camelcase': [0, { 
          'properties': 'always'
        }],
        'comma-dangle': [2, 'never'],
        'comma-spacing': [2, { 
          'before': false,
          'after': true
        }],
        'comma-style': [2, 'last'],
        'constructor-super': 2,
        'curly': [2, 'multi-line'],
        'dot-location': [2, 'property'],
        'eol-last': 2,
        'eqeqeq': ["error", "always", { "null": "ignore"}],
        'generator-star-spacing': [2, { 
          'before': true,
          'after': true
        }],
        'handle-callback-err': [2, '^(err|error)$'],
        'indent': [2, 2, { 
          'SwitchCase': 1
        }],
        'jsx-quotes': [2, 'prefer-single'],
        'key-spacing': [2, { 
          'beforeColon': false,
          'afterColon': true
        }],
        'keyword-spacing': [2, { 
          'before': true,
          'after': true
        }],
        'new-cap': [2, { 
          'newIsCap': true,
          'capIsNew': false
        }],
        'new-parens': 2,
        'no-array-constructor': 2,
        'no-caller': 2,
        'no-console': 'off',
        'no-class-assign': 2,
        'no-cond-assign': 2,
        'no-const-assign': 2,
        'no-control-regex': 0,
        'no-delete-var': 2,
        'no-dupe-args': 2,
        'no-dupe-class-members': 2,
        'no-dupe-keys': 2,
        'no-duplicate-case': 2,
        'no-empty-character-class': 2,
        'no-empty-pattern': 2,
        'no-eval': 2,
        'no-ex-assign': 2,
        'no-extend-native': 2,
        'no-extra-bind': 2,
        'no-extra-boolean-cast': 2,
        'no-extra-parens': [2, 'functions'],
        'no-fallthrough': 2,
        'no-floating-decimal': 2,
        'no-func-assign': 2,
        'no-implied-eval': 2,
        'no-inner-declarations': [2, 'functions'],
        'no-invalid-regexp': 2,
        'no-irregular-whitespace': 2,
        'no-iterator': 2,
        'no-label-var': 2,
        'no-labels': [2, { 
          'allowLoop': false,
          'allowSwitch': false
        }],
        'no-lone-blocks': 2,
        'no-mixed-spaces-and-tabs': 2,
        'no-multi-spaces': 2,
        'no-multi-str': 2,
        'no-multiple-empty-lines': [2, { 
          'max': 1
        }],
        'no-native-reassign': 2,
        'no-negated-in-lhs': 2,
        'no-new-object': 2,
        'no-new-require': 2,
        'no-new-symbol': 2,
        'no-new-wrappers': 2,
        'no-obj-calls': 2,
        'no-octal': 2,
        'no-octal-escape': 2,
        'no-path-concat': 2,
        'no-proto': 2,
        'no-redeclare': 2,
        'no-regex-spaces': 2,
        'no-return-assign': [2, 'except-parens'],
        'no-self-assign': 2,
        'no-self-compare': 2,
        'no-sequences': 2,
        'no-shadow-restricted-names': 2,
        'no-spaced-func': 2,
        'no-sparse-arrays': 2,
        'no-this-before-super': 2,
        'no-throw-literal': 2,
        'no-trailing-spaces': 2,
        'no-undef': 2,
        'no-undef-init': 2,
        'no-unexpected-multiline': 2,
        'no-unmodified-loop-condition': 2,
        'no-unneeded-ternary': [2, { 
          'defaultAssignment': false
        }],
        'no-unreachable': 2,
        'no-unsafe-finally': 2,
        'no-unused-vars': [2, { 
          'vars': 'all',
          'args': 'none'
        }],
        'no-useless-call': 2,
        'no-useless-computed-key': 2,
        'no-useless-constructor': 2,
        'no-useless-escape': 0,
        'no-whitespace-before-property': 2,
        'no-with': 2,
        'one-var': [2, { 
          'initialized': 'never'
        }],
        'operator-linebreak': [2, 'after', { 
          'overrides': { 
            '?': 'before',
            ':': 'before'
          }
        }],
        'padded-blocks': [2, 'never'],
        'quotes': [2, 'single', { 
          'avoidEscape': true,
          'allowTemplateLiterals': true
        }],
        'semi': [2, 'never'],
        'semi-spacing': [2, { 
          'before': false,
          'after': true
        }],
        'space-before-blocks': [2, 'always'],
        'space-before-function-paren': [2, 'never'],
        'space-in-parens': [2, 'never'],
        'space-infix-ops': 2,
        'space-unary-ops': [2, { 
          'words': true,
          'nonwords': false
        }],
        'spaced-comment': [2, 'always', { 
          'markers': ['global', 'globals', 'eslint', 'eslint-disable', '*package', '!', ',']
        }],
        'template-curly-spacing': [2, 'never'],
        'use-isnan': 2,
        'valid-typeof': 2,
        'wrap-iife': [2, 'any'],
        'yield-star-spacing': [2, 'both'],
        'yoda': [2, 'never'],
        'prefer-const': 2,
        'no-debugger': process.env.NODE_ENV === 'production' ? 2 : 0,
        'object-curly-spacing': [2, 'always', { 
          objectsInObjects: false
        }],
        'array-bracket-spacing': [2, 'never']
      }
    }

如图：![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2lfYW1fYV9kaXY_size_16_color_FFFFFF_t_70 5]

\*\*5.正常情况，到步骤4即可自动保存做eslint校验；如果无效，1.可能是eslint未打开，未打开时候代码是不会报错的： \*\*  
查看是否打开，以及打开方式：![在这里插入图片描述][20210315175617638.gif]  
**2.如果eslint图标是感叹号，则是因为项目根目录外面还套了个文件夹，且用vscode打开，则会出现该问题；直接把项目根目录拖进vscode就可以解决了！ 不要用套了文件夹的文件直接打开**  
![在这里插入图片描述][20210330173451127.png]  
**3.如果以上eslint和配置都打开了 ，代码不报红，但是页面还是报错启动不了，那就重新启动一次项目即可**

**6.ctrl + s保存自动处理错误：**

![在这里插入图片描述][2021031518013625.gif]

**7.最后提交代码时候，最好再次检查下，针对具体错误在手动修改：检查命令 npm run lint**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2lfYW1fYV9kaXY_size_16_color_FFFFFF_t_70 6]

有用就点个赞吧！

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2lfYW1fYV9kaXY_size_16_color_FFFFFF_t_70]: /images/20210724/f2f4912193ab476b9c8ca502d7146635.png
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[Link 1]: https://blog.csdn.net/weixin_47929185/article/details/108298235
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2lfYW1fYV9kaXY_size_16_color_FFFFFF_t_70 5]: /images/20210724/6ef79a2443af4f118081606387246d62.png
[20210315175617638.gif]: /images/20210724/c8a7788b444040d79d874581e813d407.png
[20210330173451127.png]: /images/20210724/ad6b68364e744f67b3b7c90c6a1d707e.png
[2021031518013625.gif]: /images/20210724/e8fa1da880334cbc8149592c5a34ab2a.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2lfYW1fYV9kaXY_size_16_color_FFFFFF_t_70 6]: /images/20210724/dfba4665683c4f21901bf6b2077d4d82.png