.eslintrc.json

{
  "env": {
    "jest": true
  },
  "extends": [
    "eslint:recommended",
    "standard",
    "plugin:import/recommended",
    "plugin:promise/recommended",
    "prettier"
  ],
  "overrides": [
    {
      "extends": [
        "plugin:@typescript-eslint/recommended",
        "plugin:@typescript-eslint/recommended-type-checked",
        "plugin:import/typescript"
      ],
      "files": ["*.ts"],
      "parserOptions": {
        "project": [
          "./tsconfig.json",
          "./tests/ts/tsconfig.json",
          "./tests/ts-nodenext/tsconfig.json"
        ],
        "sourceType": "module",
        "tsconfigRootDir": "."
      },
      "rules": {
        "@typescript-eslint/array-type": [
          "error",
          {
            "default": "array"
          }
        ],
        "@typescript-eslint/ban-ts-comment": [
          "error",
          {
            "minimumDescriptionLength": 5,
            "ts-expect-error": "allow-with-description",
            "ts-ignore": true,
            "ts-nocheck": false,
            "ts-check": true
          }
        ],
        "@typescript-eslint/ban-types": "warn",
        "@typescript-eslint/brace-style": [
          "error",
          "1tbs",
          {
            "allowSingleLine": true
          }
        ],
        "@typescript-eslint/consistent-indexed-object-style": ["error"],
        "@typescript-eslint/consistent-type-assertions": [
          "warn",
          {
            "assertionStyle": "as"
          }
        ],
        "@typescript-eslint/consistent-type-definitions": ["error"],
        "@typescript-eslint/explicit-function-return-type": [
          "warn",
          {
            "allowExpressions": true,
            "allowTypedFunctionExpressions": true,
            "allowHigherOrderFunctions": true
          }
        ],
        "@typescript-eslint/explicit-member-accessibility": [
          "error",
          {
            "accessibility": "no-public"
          }
        ],
        "@typescript-eslint/explicit-module-boundary-types": "warn",
        "@typescript-eslint/member-delimiter-style": "warn",
        "@typescript-eslint/method-signature-style": "error",
        "@typescript-eslint/member-ordering": "error",
        "@typescript-eslint/naming-convention": [
          "error",
          {
            "selector": "typeParameter",
            "format": ["PascalCase"],
            "custom": {
              "match": true,
              "regex": "^[A-Z][A-Za-z]+$"
            }
          }
        ],
        "@typescript-eslint/no-dynamic-delete": "warn",
        "@typescript-eslint/no-empty-interface": "off",
        "@typescript-eslint/no-extraneous-class": "error",
        "@typescript-eslint/no-extra-parens": ["error", "functions"],
        "@typescript-eslint/no-extra-semi": "error",
        "@typescript-eslint/no-unused-expressions": "error",
        "@typescript-eslint/no-unused-vars": [
          "warn",
          {
            "vars": "all",
            "args": "none",
            "argsIgnorePattern": "^_",
            "ignoreRestSiblings": true
          }
        ],
        "@typescript-eslint/no-unnecessary-type-arguments": "error",
        "@typescript-eslint/no-unnecessary-type-constraint": "error",
        "@typescript-eslint/no-unsafe-argument": "warn",
        "@typescript-eslint/no-unsafe-assignment": "warn",
        "@typescript-eslint/no-unsafe-member-access": "warn",
        "@typescript-eslint/no-unsafe-return": "warn",
        "@typescript-eslint/no-useless-constructor": "warn",
        "@typescript-eslint/object-curly-spacing": ["error", "always"],
        "@typescript-eslint/parameter-properties": "error",
        "@typescript-eslint/prefer-for-of": "error",
        "@typescript-eslint/prefer-includes": "error",
        "@typescript-eslint/prefer-optional-chain": "error",
        "@typescript-eslint/prefer-regexp-exec": "error",
        "@typescript-eslint/prefer-string-starts-ends-with": "error",
        "@typescript-eslint/prefer-ts-expect-error": "error",
        "@typescript-eslint/quotes": [
          "error",
          "single",
          {
            "allowTemplateLiterals": true
          }
        ],
        "@typescript-eslint/require-await": "off",
        "@typescript-eslint/semi": "error",
        "@typescript-eslint/sort-type-constituents": "error",
        "@typescript-eslint/type-annotation-spacing": "error",
        "@typescript-eslint/unified-signatures": "error",
        "indent": "off"
      }
    },
    {
      "files": ["**.test.ts"],
      "rules": {
        "@typescript-eslint/no-unsafe-member-access": "off",
        "@typescript-eslint/no-unused-expressions": "off",
        "@typescript-eslint/no-unsafe-assignment": "off",
        "@typescript-eslint/unbound-method": "off",
        "no-unused-expressions": "off"
      }
    },
    {
      "files": ["tests/**"],
      "rules": {
        "@typescript-eslint/no-unsafe-argument": "off",
        "@typescript-eslint/no-unsafe-member-access": "off",
        "@typescript-eslint/no-unsafe-assignment": "off"
      }
    }
  ],
  "parser": "@typescript-eslint/parser",
  "rules": {
    "import/no-named-as-default-member": "off",
    "import/order": [
      "error",
      {
        "alphabetize": {
          "order": "asc"
        }
      }
    ],
    "no-use-before-define": "warn",
    "sort-keys": "warn"
  }
}