.eslintrc

{
  "env": {
    "browser": true,
    "es6": true,
    "jest": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:import/errors",
    "plugin:import/typescript",
    "plugin:import/warnings"
  ],
  "globals": {
    "Atomics": "readonly",
    "SharedArrayBuffer": "readonly"
  },
  "ignorePatterns": [
    "coverage/",
    "dist/",
    "node_modules/",
    "script/",
    "spec/"
  ],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": 2020,
    "project": "./tsconfig.eslint.json",
    "sourceType": "module"
  },
  "plugins": [
    "@typescript-eslint",
    "editorconfig",
    "functional",
    "import"
  ],
  "root": true,
  "rules": {
    "@typescript-eslint/array-type": "error",
    "@typescript-eslint/await-thenable": "error",
    "@typescript-eslint/ban-types": ["error", {"types": {"{}": false, "object": false}}],
    "@typescript-eslint/ban-ts-comment": "warn",
    "@typescript-eslint/explicit-function-return-type": "warn",
    "@typescript-eslint/naming-convention": ["error", { "selector": "property", "format": ["PascalCase", "camelCase", "snake_case"] }],
    "@typescript-eslint/no-floating-promises": "error",
    "@typescript-eslint/no-for-in-array": "error",
    "@typescript-eslint/no-unused-vars": ["warn", {"argsIgnorePattern": "^_"}],
    "@typescript-eslint/prefer-for-of": "error",
    "@typescript-eslint/prefer-readonly": "error",
    "@typescript-eslint/promise-function-async": "error",
    "@typescript-eslint/no-namespace": "off",
    "arrow-parens": ["error", "as-needed"],
    "comma-dangle": ["error", "always-multiline"],
    "editorconfig/charset": "warn",
    "editorconfig/eol-last": "warn",
    "editorconfig/indent": "warn",
    "editorconfig/linebreak-style": "warn",
    "editorconfig/no-trailing-spaces": "warn",
    "functional/no-let": "warn",
    "functional/prefer-readonly-type": ["warn", {"ignoreClass": true}],
    "import/no-amd": "error",
    "import/no-commonjs": "error",
    "import/order": ["warn", {"alphabetize": {"order": "asc", "caseInsensitive": true}, "newlines-between": "always"}],
    "linebreak-style": ["error", "unix"],
    "max-len": ["warn", {"code": 120}],
    "newline-before-return": "warn",
    "no-case-declarations": "warn",
    "no-console": "error",
    "no-delete-var": "error",
    "no-eval": "error",
    "no-octal": "error",
    "no-param-reassign": "error",
    "no-sequences": "error",
    "no-trailing-spaces": "warn",
    "no-unused-expressions": "warn",
    "object-curly-spacing": ["warn", "always"],
    "prefer-const": "warn",
    "prefer-object-spread": "warn",
    "prefer-template": "warn",
    "quotes": ["warn", "single"],
    "require-await": "error",
    "semi": ["error", "always"],
    "sort-imports": ["warn", {"ignoreCase": true, "ignoreDeclarationSort": true}],
    "sort-keys": ["warn", "asc", {"caseSensitive": false, "natural": false, "minKeys": 2}],
    "use-isnan": "error"
  },
  "overrides": [
    {
      "files": [
        "src/**/*.test.{ts,js}"
      ],
      "rules": {
        "functional/no-let": "off"
      }
    }
  ]
}