Eslint

Eslint 是一个 javascript 代码报错和修复工具。

安装

npm install -D eslint

配置

touch eslint.config.js

export default [
  // ... presets
  {
    files: [
      "src/**/*.js",
      "src/**/*.ts",
    ],
    ignores: [
      "src/public/index.js",
    ],
    rules: {
      "no-unreachable": "off",
      "no-unused-vars": "warn",
      "no-undef": "error",
    },
  },
];

命令行

# eslint [options] [file|dir|glob]*
eslint index.js
eslint src/
eslint # 等价于 eslint ./
eslint src/**/*.js
eslint --fix index.js

预设

@eslint/js

npm install -D @eslint/js

import js from '@eslint/js'
export default [
  // ...
  js.configs.recommended,
  // ...
]