.eslintrc.json

{
  "root": true,
  "parserOptions": {
    "ecmaVersion": 6,
    "sourceType": "module"
  },
  "env": {
    "commonjs": true,
    "worker": true
  },
  "plugins": ["prettier"],
  "rules": {
    "curly": "warn",
    "eqeqeq": ["warn", "always", { "null": "ignore" }],
    "no-throw-literal": "warn",
    "semi": "off",
    "prefer-const": "warn"
  },
  "ignorePatterns": ["**/*.d.ts"],
  "extends": ["eslint:recommended", "plugin:prettier/recommended"],
  "overrides": [
    {
      "files": ["**/*.ts"],
      "parser": "@typescript-eslint/parser",
      "rules": {
        "@typescript-eslint/naming-convention": "warn",
        "@typescript-eslint/semi": "warn",
        "@typescript-eslint/no-unused-vars": [
          "warn", // or "error"
          {
            "argsIgnorePattern": "^_",
            "varsIgnorePattern": "^_",
            "caughtErrorsIgnorePattern": "^_"
          }
        ],
        "curly": "warn",
        "eqeqeq": ["warn", "always", { "null": "ignore" }],
        "no-throw-literal": "warn",
        "semi": "off",
        "prefer-const": "warn",
        "prettier/prettier": "off"
      },
      "extends": [
        "eslint:recommended",
        "plugin:prettier/recommended",
        "plugin:@typescript-eslint/eslint-recommended",
        "plugin:@typescript-eslint/recommended"
      ],
      "plugins": ["@typescript-eslint", "prettier"]
    }
  ]
}