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一、背景
最新版的eslint,默认init之后为eslint.config.js,整体配置较之前版本均有变动; vite&ts版本。
1.1 安装
pnpm i eslint -D
1.2 初始化
npx eslint --init npx eslint --init Need to install the following packages: @eslint/create-config@1.0.1 Ok to proceed? (y) y npm WARN EBADENGINE Unsupported engine { npm WARN EBADENGINE package: '@eslint/create-config@1.0.1', npm WARN EBADENGINE required: { node: '^18.18.0 || ^20.9.0 || >=21.1.0' }, npm WARN EBADENGINE current: { node: 'v18.14.0', npm: '9.3.1' } npm WARN EBADENGINE } ? How would you like to use ESLint? ... To check syntax only > To check syntax and find problems To check syntax, find problems, and enforce code style ? What type of modules does your project use? ... > JavaScript modules (import/export) CommonJS (require/exports) None of these √ How would you like to use ESLint? · problems √ What type of modules does your project use? · esm √ Which framework does your project use? · vue √ Does your project use TypeScript? · typescript √ Where does your code run? · browser The config that you've selected requires the following dependencies: eslint, globals, @eslint/js, typescript-eslint, eslint-plugin-vue √ Would you like to install them now? · No / Yes ? Which package manager do you want to use? ... npm yarn > pnpm bun
1.3 配置文件修正
import globals from 'globals' // 预定义配置 import pluginJs from '@eslint/js' import tseslint from 'typescript-eslint' import pluginVue from 'eslint-plugin-vue' // import babelParser from "@typescript-eslint/parser"; import commpnParser from 'vue-eslint-parser' import prettier from 'eslint-plugin-prettier' // "@babel/eslint-parser"; // import customConfig from "./esconfig/custom_config.js"; export default [ // languageOptions:配置如何检查 js 代码 { // 1.1 处理 与 JavaScript 相关的配置项 // - ecmaVersion // - sourceType // - globals // - parser // - parserOptions // files: ["**/*.ts", "**/*.vue"], // ignores: ["**/*.config.js"], ignores: [ '**/*.config.js', 'dist/**', 'node_modules/**', '!**/eslint.config.js', ], languageOptions: { // 1.11 定义可用的全局变量 globals: globals.browser, // 1.12 扩展 // ecmaVersion: "latest", // sourceType: "module", parser: commpnParser, parserOptions: { ecmaVersion: 'latest', sourceType: 'module', parser: '@typescript-eslint/parser', jsxPragma: 'React', ecmaFeatures: { jsx: true, }, }, }, }, // 原来的extends替换为如下模式 pluginJs.configs.recommended, ...tseslint.configs.recommended, ...pluginVue.configs['flat/essential'], { plugins: { prettier, }, rules: { // 开启这条规则后,会将prettier的校验规则传递给eslint,这样eslint就可以按照prettier的方式来进行代码格式的校验 'prettier/prettier': 'error', // eslint(https://eslint.bootcss.com/docs/rules/) 'no-var': 'error', // 要求使用 let 或 const 而不是 var 'no-multiple-empty-lines': ['warn', { max: 1 }], // 不允许多个空行 'no-console': process.env.NODE_ENV === 'production' ? 'error' : 'off', 'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off', 'no-unexpected-multiline': 'error', // 禁止空余的多行 'no-useless-escape': 'off', // 禁止不必要的转义字符 // typeScript (https://typescript-eslint.io/rules) '@typescript-eslint/no-unused-vars': 'error', // 禁止定义未使用的变量 '@typescript-eslint/prefer-ts-expect-error': 'error', // 禁止使用 @ts-ignore '@typescript-eslint/no-explicit-any': 'off', // 禁止使用 any 类型 '@typescript-eslint/no-non-null-assertion': 'off', '@typescript-eslint/no-namespace': 'off', // 禁止使用自定义 TypeScript 模块和命名空间。 '@typescript-eslint/semi': 'off', // eslint-plugin-vue (https://eslint.vuejs.org/rules/) 'vue/multi-word-component-names': 'off', // 要求组件名称始终为 “-” 链接的单词 'vue/script-setup-uses-vars': 'error', // 防止<script setup>使用的变量<template>被标记为未使用 'vue/no-mutating-props': 'off', // 不允许组件 prop的改变 'vue/attribute-hyphenation': 'off', // 对模板中的自定义组件强制执行属性命名样式 }, }, ]