.eslintrc.json

{
    "env": {
        "browser": true,
        "es2020": true
    },
    "extends": [
        "react-app",
        "plugin:react/recommended",
        "airbnb"
    ],
    "parserOptions": {
        "ecmaFeatures": {
            "jsx": true
        },
        "ecmaVersion": 11,
        "sourceType": "module"
    },
    "plugins": [
        "react"
    ],
    "rules": {
        "linebreak-style": "off",
        "react/jsx-filename-extension": ["warn", { "extensions": [".js", ".jsx"] }],
        "no-unused-vars": "warn",
        "no-console": "warn",
        "no-restricted-syntax": "off",
        "no-constant-condition": ["error", { "checkLoops": false }],
        "no-underscore-dangle": "off",
        "no-plusplus": ["error", { "allowForLoopAfterthoughts": true }],
        "func-names": ["warn", "as-needed"],
        "no-unused-expressions": ["error", { "allowTernary": true }]
    }
}