.eslintrc

{
  "extends": [
    "hypothesis",
    "plugin:jsx-a11y/recommended",
    "plugin:@typescript-eslint/recommended"
  ],
  "parser": "@typescript-eslint/parser",
  "plugins": ["@typescript-eslint"],
  "rules": {
    "prefer-arrow-callback": ["error", { "allowNamedFunctions": true }],
    "object-shorthand": ["error", "properties"],

    // Replaced by TypeScript's static checking.
    "react/prop-types": "off",

    // Upgrade TS rules from warning to error.
    "@typescript-eslint/no-unused-vars": "error",

    // Replace no-use-before-define with TS version, to avoid incorrect warnings.
    // See https://typescript-eslint.io/rules/no-use-before-define
    "no-use-before-define": "off",
    "@typescript-eslint/no-use-before-define": [
      "error",
      {
        "functions": false,
        "typedefs": false,
        "ignoreTypeReferences": false
      }
    ],

    // Disable TS rules that we dislike.
    "@typescript-eslint/ban-ts-comment": "off",
    "@typescript-eslint/no-empty-function": "off",
    "@typescript-eslint/no-explicit-any": "off",
    "@typescript-eslint/no-non-null-assertion": "off",
    "@typescript-eslint/no-this-alias": "off",

    // Enforce consistency in cases where TypeScript supports old and new
    // syntaxes for the same thing.
    //
    // - Require `<var> as <type>` for casts
    // - Require `import type` for type imports. The corresponding rule for
    //   exports is not enabled yet because that requires setting up type-aware
    //   linting.
    "@typescript-eslint/consistent-type-assertions": "error",
    "@typescript-eslint/consistent-type-imports": "error"
  },
  "overrides": [
    {
      "files": ["*.js"],
      "excludedFiles": ["src/**"],
      "env": { "node": true },
    }
  ]
}