const removeEmptyKeysUtil = (payload: any): any => { Object.keys(payload).map( (key): any => { if (payload && payload[key] === '') { delete payload[key]; } return false; } ); return payload; }; export default removeEmptyKeysUtil; if (payload && payload[key] === '') { const {delete payload[key], ...actualPayload} = payload; } return false; I know, I can disable the rule, but I do not want to do that. I want to properly code that branch