Typescript Eslintrc Configuration

.eslintrc.json

{
    "env": {
        "browser": true,
        "es2021": true
    },
    "extends": [
        "plugin:react/recommended",
        "airbnb",
        "plugin:@typescript-eslint/recommended"
    ],
    "parser": "@typescript-eslint/parser",
    "parserOptions": {
        "ecmaFeatures": {
            "jsx": true
        },
        "ecmaVersion": 12,
        "sourceType": "module"
    },
    "plugins": [
        "react",
        "@typescript-eslint",
        "react-hooks"
    ],
    "settings": {
        "import/resolver": {
            "typescript": {},
            "node": {
                "extensions": [".js", ".jsx", ".ts", ".tsx"]
            }
        }
    },
    "rules": {
        "no-use-before-define": "off",
        "@typescript-eslint/no-use-before-define": ["error"],
        "react/jsx-filename-extension": [ "warn", {"extensions": [".tsx"]} ],
        "import/extensions": [
            "error",
            "ignorePackages",
            {
                "ts": "never",
                "tsx": "never"
            }
        ],
        "no-shadow": "off",
        "@typescript-eslint/no-shadow": ["error"],
        "@typescript-eslint/explicit-function-return-type": [
            "off",
            {
                "allowExpressions": true
            }
        ],
        "max-len": ["warn", { "code": 120 }],
        "react-hooks/rules-of-hooks": "error",
        "react-hooks/exhaustive-deps": "warn",
        "import/prefer-default-export": "off",
        "react/prop-types": "off",
        "@typescript-eslint/ban-types": [
            "error",
            {
                "extendDefaults": true,
                "types": {
                    "{}": false
                }
            }
        ]
    }
}

Reference.md

Setup

1. Install Eslint npm install eslint --save-dev
2. Generate .eslinrc.json npx eslint --init
3. Choose the required options
4. Install the extra dependencies

npm install eslint-import-resolver-typescript prettier eslint-config-prettier --save-dev

André Borba Netto Assis Blog on Eslint with Typescript