Filter Map and Reduce

Question

I have the following line of code:

$scope.listDeColaboradoresObject.forEach(item => {
  item.listNmAssunto = 
  $scope.relatorioTotalMensagensRespondidasColab
  .filter(x => x.nmUsuario == item.nmUsuario)
  .map(x => x.nmAssunto);
    item.listNmAssunto = $scope.removeDuplicates(item.listNmAssunto);

    item.listDtResposta = $scope.relatorioTotalMensagensRespondidasColab
    .filter(x => x.nmUsuario == item.nmUsuario)
    .map(x => x.dtResposta);

});

who walks this array:

0: {deTipoAtendimento: "012", nmAssunto: "Cartão extraviado", nmUsuario: "15", dtResposta: "2018", total: 1}
1: {deTipoAtendimento: "012", nmAssunto: "Assunto Novo 012", nmUsuario: "Admin", dtResposta: "2018", total: 2}
2: {deTipoAtendimento: "012", nmAssunto: "Assunto Novo 012", nmUsuario: "Administrador", dtResposta: "2018", total: 1}
3: {deTipoAtendimento: "012", nmAssunto: "Assunto Novo 012", nmUsuario: "Administrador IMB", dtResposta: "2018", total: 3}
4: {deTipoAtendimento: "012", nmAssunto: "Assunto Teste GREAt", nmUsuario: "Administrador IMB", dtResposta: "2018", total: 2}
5: {deTipoAtendimento: "012", nmAssunto: "Thais 23042018", nmUsuario: "Administrador IMB", dtResposta: "2018", total: 2}
6: {deTipoAtendimento: "012", nmAssunto: "teste Alterado2", nmUsuario: "Administrador IMB", dtResposta: "2018", total: 1}

and that returns to me the following array:

0: {nmUsuario: "15", listNmAssunto: Array(1), listDtResposta: Array(1), $$hashKey: "object:2975"}
1: {nmUsuario: "Admin", listNmAssunto: Array(1), listDtResposta: Array(1), $$hashKey: "object:2976"}
2: {nmUsuario: "Administrador", listNmAssunto: Array(1), listDtResposta: Array(1), $$hashKey: "object:2977"}
3: {nmUsuario: "Administrador IMB", listNmAssunto: Array(4), listDtResposta: Array(4), $$hashKey: "object:2978"}

My question is how do I make it at the time of map i insert both nmAssunto and dtResposta into the same *array

Answer 1

Just create the object with the two properties and return it in the map callback

$scope.listDeColaboradoresObject.forEach(item => {

  item.listAssuntoResposta = $scope.relatorioTotalMensagensRespondidasColab
    .filter(x => x.nmUsuario == item.nmUsuario)
    .map(x => ({ nmAssunto: x.nmAssunto, dtResposta: x.dtResposta}) );

});

As you are using an Arrow Function, the statement stated shortly after the => is automatically interpreted as the function return. However, since you are declaring an object as return, it is important to leave it in parentheses, or the compiler/interpreter will interpret the keys as the beginning of the function’s scope, not as the beginning of an object’s declaration.