no-useless-fallback-in-spread.md

Disallow useless fallback when spreading in object literals

💼 This rule is enabled in the ✅ recommended config.

🔧 This rule is automatically fixable by the --fix CLI option.

Spreading falsy values in object literals won't add any unexpected properties, so it's unnecessary to add an empty object as fallback.

Fail

const object = {...(foo || {})};

const object = {...(foo ?? {})};

Pass

const object = {...foo};

const object = {...(foo && {})};

const array = [...(foo || [])];