.eslintrc.js

module.exports = {
    env: {
      es6: true,
      jasmine: true,
      node: true,
      worker: true,
    },
    parser: "@typescript-eslint/parser",
    parserOptions: {
      ecmaVersion: 2018,
      project: "./tsconfig.eslint.json",
      tsconfigRootDir: __dirname,
    },
    plugins: ["@typescript-eslint", "prettier", "simple-import-sort", "import"],
    extends: [
      "eslint:recommended",
      "plugin:@typescript-eslint/recommended",
      "prettier",
      "plugin:prettier/recommended",
      "plugin:import/typescript",
    ],
    rules: {
      curly: ["warn", "multi-line", "consistent"],
      "no-bitwise": "warn",
      "no-console": ["warn", { allow: ["error", "info", "table", "warn"] }],
      "no-param-reassign": "warn",
      "no-shadow": "off", // disabled in favour of @typescript-eslint/no-shadow, see https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/no-shadow.md
      "no-unused-vars": "off", // disabled in favour of @typescript-eslint/no-unused-vars, see https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/no-unused-vars.md
      "prefer-const": "warn",
      radix: ["warn", "always"],
      "spaced-comment": ["warn", "always", { line: { markers: ["/ <reference"] } }],
      "import/no-cycle": "warn",
      "simple-import-sort/imports": "warn",
      "simple-import-sort/exports": "warn",
      "@typescript-eslint/array-type": ["warn", { default: "array-simple" }],
      "@typescript-eslint/await-thenable": "warn",
      "@typescript-eslint/ban-types": "warn",
      "@typescript-eslint/explicit-function-return-type": ["warn", { allowExpressions: true }],
      "@typescript-eslint/explicit-member-accessibility": "warn",
      "@typescript-eslint/naming-convention": [
        "warn",
        {
          selector: "default",
          format: ["strictCamelCase"],
        },
        {
          selector: "typeLike",
          format: ["StrictPascalCase"],
        },
        {
          selector: "enumMember",
          format: ["StrictPascalCase"],
        },
        {
          selector: "variable",
          format: ["strictCamelCase"],
          leadingUnderscore: "allow",
        },
        {
          selector: "parameter",
          format: ["strictCamelCase"],
          leadingUnderscore: "allow",
        },
      ],
      "@typescript-eslint/no-dynamic-delete": "warn",
      "@typescript-eslint/no-empty-function": "off",
      "@typescript-eslint/no-empty-interface": "off",
      "@typescript-eslint/no-explicit-any": "off",
      "@typescript-eslint/no-floating-promises": "warn",
      "@typescript-eslint/no-parameter-properties": "warn",
      "@typescript-eslint/no-shadow": "warn",
      "@typescript-eslint/no-unused-vars": ["warn", { argsIgnorePattern: "^_", varsIgnorePattern: "^_" }],
      "@typescript-eslint/no-unnecessary-type-assertion": "warn",
      "@typescript-eslint/no-use-before-define": "warn",
      "@typescript-eslint/prefer-readonly": "warn",
    },
    overrides: [
      {
        files: "**/*.js",
        rules: {
          "@typescript-eslint/no-var-requires": "off",
          "@typescript-eslint/explicit-function-return-type": "off",
          "@typescript-eslint/explicit-member-accessibility": "off",
          "@typescript-eslint/explicit-module-boundary-types": "off",
        },
      },
      {
        files: "**/*.spec.ts",
        rules: {
          "@typescript-eslint/no-non-null-assertion": "off",
        },
      },
    ],
  };