.eslintrc.json

{
  "root": true,
  "extends": [
    "eslint:recommended",
    "plugin:jest/all",
    "plugin:testing-library/dom",
    "plugin:jest-dom/recommended",
    "plugin:import/errors",
    "plugin:import/typescript",
    "prettier"
  ],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "project": ["tsconfig.json", "functions/tsconfig.json"],
    "sourceType": "module",
    "ecmaVersion": 2020
  },
  "env": {
    "browser": true,
    "es6": true
  },
  "plugins": ["jest", "@typescript-eslint", "html", "import"],
  "ignorePatterns": ["dist/"],
  "settings": {
    "import/parsers": {
      "@typescript-eslint/parser": [".ts", ".tsx"]
    },
    "import/resolver": {
      "typescript": {
        "alwaysTryTypes": true,
        "project": "./tsconfig.json"
      }
    }
  },
  "rules": {
    "@typescript-eslint/unbound-method": "warn",
    "jest/unbound-method": "warn",
    "jest/max-expects": ["warn", { "max": 10 }],
    "brace-style": "off",
    "new-cap": "off",
    "no-var": "error",
    "require-jsdoc": "off",
    "max-len": ["error", { "code": 120 }],
    "object-curly-spacing": ["error", "always"],
    "space-before-function-paren": [
      "error",
      { "anonymous": "always", "named": "never", "asyncArrow": "always" }
    ],
    "linebreak-style": 0,
    "jest/no-hooks": "off",
    "jest/prefer-expect-assertions": "off",
    "jest/require-hook": "off",
    "testing-library/no-node-access": "warn"
  },
  "overrides": [
    {
      "files": ["*.ts", "*.tsx"],
      "rules": {
        "@typescript-eslint/no-unused-vars": ["error", { "args": "none" }]
      }
    }
  ],
  "globals": {
    "ServiceWorkerGlobalScope": true
  }
}