tengo una matriz que contiene muchos objetos y quiero agregar ambas matrices en un objeto en alguna validación, como si la misma clave tuviera valor en ambos objetos, entonces el valor de la clave del objeto de salida debería estar en blanco si una clave tiene valor solo en uno solo entonces valor debe presentarse en el objeto de salida y el ejemplo:
let userValues = [ { "userId": "810", "values": { "21866": "Russia", "21867": "Dog", "21868": "" }, }, { "userId": "811", "values": { "21866": "UAE", "21867": "", "21868": "cheddar cheese" }, } ] let aggricagtedValue= { "21866": "", "21867": "Dog", "21868": "cheddar cheese" }De esta manera te puede ayudar:
const data = [ { "userId": "810", "values": { "21866": "Russia", "21867": "Dog", "21868": "" }, }, { "userId": "811", "values": { "21866": "UAE", "21867": "", "21868": "cheddar cheese" }, } ]; console.log(Object.values(data.reduce((acc, {values}) => { Object.keys(values).forEach((key) => { if (!acc[key]) acc[key] = {key, values: []}; if (values[key].length > 0) acc[key].values.push(values[key]); }); return acc; }, {})).reduce((acc, {key, values}) => { const _values = values.filter(item => item.length > 0).filter((value, index, self) => self.indexOf(value) === index); acc[key] = _values.length === 1 ? _values[0] : ''; return acc; }, {})); function collectGroupedValues(result, { values }, idx, arr) { // main aggregation task ... result = Object .entries(values) .reduce((obj, [key, value]) => { // ... which straightforwardly pushes items into an array. if (key in obj) { obj[key].push(value); } else { obj[key] = [value]; } return obj; }, result); // finalizing aggregation task ... if (idx >= arr.length - 1) { result = Object.fromEntries(Object .entries(result) .map(([key, valueList]) => { // ... which sanitizes each array ... valueList = valueList .filter(value => // (filter empty strings from array) value.trim() !== '' ); // ... an on top of the sanitized // result does create the final entry. return [ key, (valueList.length === 1) ? valueList[0] : '', ]; }) ); } return result } let userValues = [{ "userId": "810", "values": { "21866": "Russia", "21867": "Dog", "21868": "", }, }, { "userId": "811", "values": { "21866": "UAE", "21867": "", "21868": "cheddar cheese", }, }]; console.log({ userValues }); console.log(userValues.reduce(collectGroupedValues, {})); userValues.push({ "userId": "812", "values": { "21866": "France", "21867": "Goat", "21868": "fromage", } }); console.log({ userValues }); console.log(userValues.reduce(collectGroupedValues, {})); .as-console-wrapper { min-height: 100%!important; top: 0; }