.eslintrc.json

{
  "root": true,
  "parser": "@typescript-eslint/parser",
  "extends": ["eslint:recommended", "eslint-config-prettier", "plugin:eslint-plugin-import/errors"],
  "plugins": ["eslint-plugin-react", "eslint-plugin-import"],
  "ignorePatterns": ["**/static/matomo.js", "hardhat.config.ts", "jest_config", "node-scripts"],
  "rules": {
    "eqeqeq": ["error", "always", { "null": "ignore" }],
    "import/first": "error",
    "import/newline-after-import": "error",
    "import/no-deprecated": "error",
    "import/no-duplicates": "error",
    "import/no-mutable-exports": "error",
    "import/no-namespace": "error",
    "import/no-self-import": "error",
    "import/no-unresolved": "off",
    "import/no-useless-path-segments": "error",
    "import/order": [
      "error",
      {
        "newlines-between": "always",
        "groups": [["builtin", "external"], "internal", ["parent", "sibling", "index"]],
        "pathGroups": [
          {
            "pattern": "@{assets,components,config,database,fixtures,features,helpers,hooks,routing,sass,services,store,theme,translations,types,utils,vendor,workers}{**,**/**}",
            "group": "internal"
          },
          {
            "pattern": "react",
            "group": "external",
            "position": "before"
          }
        ],
        "pathGroupsExcludedImportTypes": [],
        "alphabetize": {
          "order": "asc",
          "caseInsensitive": true
        }
      }
    ],
    "sort-imports": [
      "error",
      {
        "ignoreCase": true,
        "ignoreDeclarationSort": true,
        "allowSeparatedGroups": true
      }
    ]
  },
  "overrides": [
    {
      "files": ["*.ts", "*.tsx"],
      "extends": [
        "plugin:@typescript-eslint/recommended",
        "plugin:eslint-plugin-react/recommended",
        "plugin:eslint-plugin-react-hooks/recommended",
        "plugin:eslint-plugin-import/typescript",
        "eslint-config-prettier/@typescript-eslint"
      ],
      "plugins": ["@typescript-eslint"],
      "rules": {
        "@typescript-eslint/consistent-type-assertions": [
          "error",
          {
            "assertionStyle": "as"
          }
        ],
        "@typescript-eslint/consistent-type-definitions": ["error", "interface"],
        "@typescript-eslint/explicit-module-boundary-types": "off",
        "@typescript-eslint/method-signature-style": ["error", "method"],
        "@typescript-eslint/no-inferrable-types": [
          "error",
          {
            "ignoreParameters": true
          }
        ],
        "@typescript-eslint/no-empty-function": [
          "error",
          {
            "allow": ["private-constructors"]
          }
        ],
        "@typescript-eslint/no-explicit-any": "off",
        "@typescript-eslint/no-non-null-assertion": "off",
        "@typescript-eslint/no-unused-vars": [
          "error",
          {
            "ignoreRestSiblings": true,
            "argsIgnorePattern": "^_"
          }
        ],
        "@typescript-eslint/prefer-nullish-coalescing": "error",
        "react/display-name": "off",
        "react/no-unescaped-entities": "off",
        "react/prop-types": "off",
        "react/react-in-jsx-scope": "off",
        "react-hooks/exhaustive-deps": "off",
        // Configure Jest to recognise react-saga-test-plan assertions
        // https://github.com/jfairbank/redux-saga-test-plan/issues/329
        "jest/expect-expect": [
          "error",
          {
            "assertFunctionNames": ["expect", "expectSaga", "testSaga", "expectToThrow"]
          }
        ]
      },
      "settings": {
        "react": {
          "version": "detect"
        }
      },
      "parserOptions": {
        "project": "./tsconfig.json",
        "ecmaFeatures": {
          "jsx": true
        }
      }
    },
    {
      "files": ["*.test.{ts,tsx}", "*.spec.{ts,tsx}", "jest_config/**/*"],
      "env": {
        "node": true,
        "jest": true
      },
      "extends": ["plugin:eslint-plugin-jest/recommended", "plugin:eslint-plugin-jest/style"],
      "plugins": ["eslint-plugin-jest"]
    },
    {
      "files": ["__tests__/**/*.js"],
      "extends": ["plugin:testcafe/recommended"],
      "plugins": ["eslint-plugin-testcafe"]
    }
  ],
  "parserOptions": {
    "ecmaVersion": 2020
  },
  "env": {
    "browser": true,
    "node": true
  }
}