.eslintrc

{
  "root": true,

  "extends": [
    "eslint:recommended"
  ],

  "plugins": [
    "eslint-plugin-only-ascii"
  ],

  "parserOptions": {
    "ecmaVersion": 2021
  },

  "env": {
    "es6": true,
    "node": true,
    "browser": true
  },

  "globals": {
    "globalThis": false
  },

  "rules": {
    "arrow-parens": ["error", "as-needed"],
    "arrow-spacing": "error",
    "brace-style": ["error", "1tbs"],
    "comma-dangle": "error",
    "comma-spacing": "error",
    "computed-property-spacing": "error",
    "curly": "error",
    "dot-notation": ["error", {
      "allowPattern": "^(true|false)$"
    }],
    "eol-last": ["error", "always"],
    "eqeqeq": ["error", "always"],
    "func-style": ["error", "expression"],
    "indent": ["error", 2, {
      "SwitchCase": 1,
      "ignoredNodes": ["TemplateLiteral > *"]
    }],
    "key-spacing": "error",
    "linebreak-style": ["error", "unix"],
    "max-len": ["error", {
      "code": 80,
      "ignoreTemplateLiterals": true,
      "ignoreUrls": true,
      "ignorePattern": "^\\s*(import\\s|export\\s|const\\s.*=\\s*require\\(|[a-zA-Z0-9].*:\\s*require\\()"
    }],
    "max-statements-per-line": "error",
    "multiline-comment-style": "error",
    "no-console": "error",
    "no-multiple-empty-lines": "error",
    "no-restricted-globals": ["error", "window"],
    "no-tabs": "error",
    "no-trailing-spaces": "error",
    "no-useless-concat": "error",
    "no-var": "error",
    "object-curly-spacing": ["error", "always"],
    "only-ascii/only-ascii": "error",
    "padded-blocks": ["error", "never"],
    "padding-line-between-statements": ["error",
      { "blankLine": "always", "prev": "block", "next": "*" },
      { "blankLine": "always", "prev": "block-like", "next": "*" },

      {
        "blankLine": "always",
        "prev": ["multiline-let", "multiline-const"],
        "next": ["multiline-let", "multiline-const"]
      }
    ],
    "prefer-arrow-callback": ["error", {
      "allowUnboundThis": false
    }],
    "prefer-template": "error",
    "quotes": ["error", "single", { "avoidEscape": true }],
    "require-atomic-updates": 0,
    "semi": "error",
    "space-before-function-paren": ["error", {
      "anonymous": "never",
      "named": "never",
      "asyncArrow": "always"
    }],
    "space-in-parens": "error",
    "space-infix-ops": "error"
  },

  "overrides": [
    {
      "files": "bin/**/*",
      "env": {
        "browser": false
      },
      "rules": {
        "no-console": 0
      }
    },

    {
      "files": "lib/**/*",
      "env": {
        "browser": false
      },
      "rules": {
        "no-console": 0
      }
    },

    {
      "files": "src/**/*",
      "env": {
        "node": false
      }
    },

    {
      "files": "tests/**/*",
      "globals": {
        "describe": false,
        "expect": false,
        "jest": false,
        "test": false
      }
    }
  ]
}