biome.json

{
    "$schema": "https://biomejs.dev/schemas/1.9.3/schema.json",
    "vcs": { "enabled": true, "clientKind": "git", "useIgnoreFile": true },
    "formatter": {
        "enabled": true,
        "useEditorconfig": true,
        "formatWithErrors": false,
        "indentStyle": "space",
        "indentWidth": 4,
        "lineEnding": "lf",
        "lineWidth": 120,
        "attributePosition": "auto",
        "bracketSpacing": true
    },
    "linter": {
        "rules": {
            "recommended": false,
            "complexity": {
                "noExtraBooleanCast": "error",
                "noUselessConstructor": "error",
                "noWith": "error",
                "useLiteralKeys": "error"
            },
            "correctness": {
                "noConstantCondition": "error",
                "noGlobalObjectCalls": "error",
                "noUnreachable": "error",
                "noUnsafeFinally": "error",
                "useIsNan": "warn",
                "useValidForDirection": "error"
            },
            "style": {
                "noYodaExpression": "error",
                "useConsistentBuiltinInstantiation": "error",
                "useDefaultParameterLast": "error",
                "useConsistentArrayType": "warn"
            },
            "suspicious": {
                "noDebugger": "error",
                "noDoubleEquals": "error",
                "noDuplicateCase": "error",
                "noDuplicateObjectKeys": "error",
                "noDuplicateParameters": "error",
                "noEmptyBlockStatements": "error",
                "noFunctionAssign": "error",
                "noMisleadingCharacterClass": "error",
                "noSparseArray": "error",
                "noUnsafeNegation": "error",
                "useDefaultSwitchClauseLast": "warn",
                "useGetterReturn": "error"
            }
        },
        "include": ["**/*.js", "**/*.ts"]
    },
    "javascript": {
        "formatter": {
            "jsxQuoteStyle": "double",
            "quoteProperties": "asNeeded",
            "trailingCommas": "none",
            "semicolons": "always",
            "arrowParentheses": "always",
            "bracketSameLine": false,
            "quoteStyle": "single",
            "attributePosition": "auto",
            "bracketSpacing": true
        },
        "globals": ["BigInt", "console"]
    }
}