vue项目中非工程化配置eslint

1. vscode安装eslint插件；

2.配置这三个文件

.eslintrc.js

// ESlint 检查配置
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: 3,
          allowFirstLine: true,
        },
      },
    ],
    "vue/singleline-html-element-content-newline": "off",
    "vue/multiline-html-element-content-newline": "off",
    "vue/html-closing-bracket-newline": [
      "error",
      {
        singleline: "never",
        multiline: "never",
      },
    ],
    "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"],
  },
};

.eslintignore

node_modules/
# 忽略build目录下类型为js的文件的语法检查
build_config/*.js
# 忽略src/assets目录下文件的语法检查
src/assets
# 忽略public目录下文件的语法检查
public/*
# 忽略打包后的dist目录下文件的语法检查
dist/
# 忽略当前目录下为js的文件的语法检查
/*.js
# 忽略当前目录下为vue的文件的语法检查
/*.vue

.editorconfig

# 告诉EditorConfig插件，这是根文件，不用继续往上查找
root = true
 
# 匹配全部文件
[*]
# 设置字符集
charset = utf-8
# 缩进风格，可选space、tab
indent_style = space
# 缩进的空格数
indent_size = 2
# 结尾换行符，可选lf、cr、crlf
end_of_line = lf
# 在文件结尾插入新行
insert_final_newline = true
# 删除一行中的前后空格
trim_trailing_whitespace = true
 
# 匹配md结尾的文件
[*.md]
insert_final_newline = false
trim_trailing_whitespace = false

3. .vscode-->setting.json文件配置

{
  "editor.tabSize": 2,
  "editor.formatOnSave": true, // 在保存时自动格式化
  "editor.formatOnType": false, // 在键入一行后是否自动化格式
  "editor.formatOnPaste": false, // 在粘贴时自动格式化
  "editor.detectIndentation": false, // vscode 默认是启用根据文件类型自动设置 tabSize 的值
  // 保存时按照哪个规则进行格式化
  "editor.codeActionsOnSave": {
    "source.fixAll.eslint": true
  },
  // "editor.defaultFormatter": "octref.vetur", //这个不注释可能会影响配置的eslint规则
  "scss.lint.duplicateProperties": "warning",
  "less.lint.duplicateProperties": "warning",
  "css.lint.duplicateProperties": "warning",
  "scss.lint.float": "warning",
  "html.format.extraLiners": ""
}

 ---------------------------------------

eslint配置单引号失效

我看eslintrc中有配置单引号

是因为配置冲突了，去掉这个配置就可以了。

参考：
cvscode vue 格式化 ESLint 检查 单引号 双引号 函数括号报错问题 - JavaShuo

ESLint在Vue中的使用详解_老哥二娃的博客-CSDN博客_vue的eslint

干货！EsLint的自动修复设置！_徐飞不会喝酒的博客-CSDN博客_eslint 自动修复