index.js

module.exports = {
  extends: [
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended-type-checked",
    "plugin:@typescript-eslint/stylistic-type-checked",
    "prettier",
  ],
  plugins: ["import", "unused-imports"],
  env: {
    node: true,
    es2021: true,
    mocha: true,
  },
  parser: "@typescript-eslint/parser",
  parserOptions: {
    project: "./tsconfig.json",
  },
  rules: {
    "no-var": "error",
    eqeqeq: ["error", "always", { null: "ignore" }],
    "prefer-const": "error",
    "sort-imports": "off",
    "import/order": [
      "error",
      { alphabetize: { order: "asc", caseInsensitive: true } },
    ],
    "unused-imports/no-unused-imports": "error",
    "@typescript-eslint/no-unnecessary-boolean-literal-compare": "error",
    "@typescript-eslint/no-unnecessary-condition": [
      "error",
      { allowConstantLoopConditions: true },
    ],
    "@typescript-eslint/no-misused-promises": [
      "error",
      { checksVoidReturn: { arguments: false, attributes: false } },
    ],
    "@typescript-eslint/prefer-for-of": "error",
    "@typescript-eslint/prefer-function-type": "error",
    "@typescript-eslint/prefer-includes": "error",
    "@typescript-eslint/prefer-nullish-coalescing": "error",
    "@typescript-eslint/prefer-optional-chain": "error",
    "@typescript-eslint/prefer-string-starts-ends-with": "error",
    "@typescript-eslint/no-unused-vars": "off",
  },
};