.eslintrc

{
  "plugins": [ "prettier" ],
  "extends": [ "airbnb-typescript", "react-app", "react-app/jest", "prettier" ],
  "parser": "@typescript-eslint/parser",
  "parserOptions": { "project": "./tsconfig.json" },
  "settings": {
    "import/resolver": { "typescript": { "alwaysTryTypes": true } }
  },
  "rules": {
    "prettier/prettier": ["warn", {
      "trailingComma": "all",
      "singleQuote": true,
      "jsxSingleQuote": true,
      "printWidth": 120,
      "arrowParens": "avoid" // Allow single argument without parentheses in arrow functions
    }],
    "import/no-anonymous-default-export": 0, // Allow "export default"
    "import/no-extraneous-dependencies": ["error", {"devDependencies": ["**/setupTests.ts", "**/*.test.js", "**/*.test.tsx", "**/*.spec.js"]}],
    "react/jsx-one-expression-per-line": 0,
    "import/order": ["warn", {
      "groups": [
        "external", // node_modules
        "internal", // src folder
        ["parent", "sibling"]
      ],
      "newlines-between": "always" // Separate all groups with new line
      }],
      "no-plusplus": 0,
      "consistent-return": 0, // returning value is not required in arrow functions
      "no-nested-ternary": 0,
      "react/require-default-props": 0,
      "@typescript-eslint/indent": 0,
      "@typescript-eslint/comma-dangle": 0,
      "@typescript-eslint/no-shadow": 0, // Allow using same variable name in outer and function scopes
      "@typescript-eslint/no-unused-vars": ["warn", {
        "vars": "local",
        "args": "after-used",
        "ignoreRestSiblings": true
      }],
      "no-underscore-dangle": ["error", { "allow": ["__STORE__", "__REDUX_DEVTOOLS_EXTENSION__"] }],
      "react/react-in-jsx-scope": 0,
      "react/jsx-uses-react": 0
  }
}