.eslintrc

{
  "env": {
    "node": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:playwright/recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:@typescript-eslint/recommended-requiring-type-checking",
    "plugin:jest-dom/recommended",
    "plugin:testing-library/react"
  ],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "project": true,
    "tsconfigRootDir": "__dirname"
  },
  "plugins": ["@typescript-eslint", "import", "react-hooks", "testing-library"],
  "root": true,
  "rules": {
    "import/no-duplicates": "error",
    "react-hooks/exhaustive-deps": "warn",
    "react-hooks/rules-of-hooks": "error",
    // not hugely concerned about accidental implicit type coercions for now https://typescript-eslint.io/rules/no-base-to-string
    "@typescript-eslint/no-base-to-string": "off",
    // The following rules need `noImplicitAny` to be set to `true` in our tsconfig. They are too restrictive for now, but should be reconsidered in future
    "@typescript-eslint/no-unsafe-assignment": "off",
    "@typescript-eslint/no-unsafe-call": "off",
    "@typescript-eslint/no-unsafe-member-access": "off",
    "@typescript-eslint/unbound-method": "off",
    // Nitpicky. Prefer `interface T` over type T
    "@typescript-eslint/consistent-type-definitions": "error",
    "@typescript-eslint/consistent-type-exports": "error",
    "@typescript-eslint/no-floating-promises": "off",
    // Use `import type` instead of `import` for type imports
    "@typescript-eslint/consistent-type-imports": [
      "error",
      {
        "fixStyle": "inline-type-imports"
      }
    ],
    // Use Array<T> instead of T[] consistently
    "@typescript-eslint/array-type": [
      "error",
      {
        "default": "generic"
      }
    ],
    "no-console": ["error", { "allow": ["warn", "error"] }],
    "no-restricted-imports": [
      "error",
      {
        "paths": [
          // These two rules ensure that we're importing lodash and lodash-es correctly. Not doing so can bloat our bundle size significantly.
          {
            "name": "lodash",
            "message": "Import specific methods from `lodash`. e.g. `import map from 'lodash/map'`"
          },
          {
            "name": "lodash-es",
            "importNames": ["default"],
            "message": "Import specific methods from `lodash-es`. e.g. `import { map } from 'lodash-es'`"
          },
          // These two rules ensure that we're importing Carbon components and icons from the correct packages (after v10). May be removed in the future.
          {
            "name": "carbon-components-react",
            "message": "Import from `@carbon/react` directly. e.g. `import { Toggle } from '@carbon/react'`"
          },
          {
            "name": "@carbon/icons-react",
            "message": "Import from `@carbon/react/icons`. e.g. `import { ChevronUp } from '@carbon/react/icons'`"
          }
        ]
      }
    ]
  }
}