.eslintrc.json

{
    "env": {
        "browser": true,
        "es2021": true,
        "node": true
    },
    "extends": [
        "plugin:react/recommended",
        "standard"
    ],
    "parser": "@typescript-eslint/parser",
    "parserOptions": {
        "ecmaFeatures": {
            "jsx": true
        },
        "ecmaVersion": 13,
        "sourceType": "module"
    },
    "plugins": [
        "react",
        "@typescript-eslint"
    ],
    "rules": {
        // remove console.log
        "no-console": ["error", { "allow": ["warn", "error", "info"] }],
        // suppress errors for missing 'import React' in files
        "react/react-in-jsx-scope": "off",
        "no-use-before-define": "off",
        "@typescript-eslint/no-use-before-define": ["error"],
        // allow jsx syntax in js files (for next.js project)
        "react/jsx-filename-extension": [1, { "extensions": [".js", ".jsx", ".ts", ".tsx"] }] // should add ".ts" if typescript project
    }
}