Tengo la siguiente matriz de objetos javascript:
[ { "firstName": "x", "lastName": "y", "age": 10}, { "firstName": "x", "lastName": "y", "height": 100}, { "firstName": "x", "lastName": "y", "weight": 50}, { "firstName": "a", "lastName": "b", "age": 11}, { "firstName": "a", "lastName": "b", "height": 110}, { "firstName": "a", "lastName": "b", "weight": 60}, { "firstName": "m", "lastName": "n", "age": 12}, { "firstName": "m", "lastName": "n", "height": 120}, { "firstName": "m", "lastName": "n", "weight": 70}]¿Es posible agrupar por nombre y apellido de modo que incluya otras propiedades del objeto en la matriz?
Matriz esperada:
[ { "firstName": "x", "lastName": "y", "age": 10, "height": 100, "weight": 50}, { "firstName": "a", "lastName": "b", "age": 11, "height": 110, "weight": 60}, { "firstName": "m", "lastName": "n", "age": 12, "height": 120, "weight": 70}]Concepto
Prepare una matriz de resultados. Iterar a través de todos los datos. Compruebe si el firstName y el lastName existen en la matriz de resultados. Si no, introdúzcalo en la matriz de resultados. En caso afirmativo, combine el objeto para obtener las propiedades que faltan.
Código
const data =[ { "firstName": "x", "lastName": "y", "age": 10}, { "firstName": "x", "lastName": "y", "height": 100}, { "firstName": "x", "lastName": "y", "weight": 50}, { "firstName": "a", "lastName": "b", "age": 11}, { "firstName": "a", "lastName": "b", "height": 110}, { "firstName": "a", "lastName": "b", "weight": 60}, { "firstName": "m", "lastName": "n", "age": 12}, { "firstName": "m", "lastName": "n", "height": 120}, { "firstName": "m", "lastName": "n", "weight": 70}]; let result = []; let found; data.forEach(d => { found = false; result.forEach(r => { if (r.firstName === d.firstName && r.lastName === d.lastName){ Object.assign(r, d); found = true; } }); if (!found){ result.push(d); } }); console.log(result);puedes hacer algo como esto
const group = data => Object.values(data.reduce((res, {firstName, lastName, ...rest}) =>{ const key = JSON.stringify({firstName, lastName}) return { ...res, [key]: {firstName, lastName, ...(res[key] || {}), ...rest} } }, {})) const data = [ { "firstName": "x", "lastName": "y", "age": 10}, { "firstName": "x", "lastName": "y", "height": 100}, { "firstName": "x", "lastName": "y", "weight": 50}, { "firstName": "a", "lastName": "b", "age": 11}, { "firstName": "a", "lastName": "b", "height": 110}, { "firstName": "a", "lastName": "b", "weight": 60}, { "firstName": "m", "lastName": "n", "age": 12}, { "firstName": "m", "lastName": "n", "height": 120}, { "firstName": "m", "lastName": "n", "weight": 70}] console.log(group(data))