javascript - 过滤对象数组

Question

我有一组带有 id/nume 的数组(对象):

Object { Biosecuritate=[Object {id=1,nume="bio"}, 
Object {id=5,nume="securitate"}], Deseuri=[Object {id=2,nume="des"}] , 
Reglementari=[Object {id=3,nume="Reglementari"}], 
Sol/Subsol=[Object {id=4,nume="Sol/Subsol"}] }

    var filtered = _.filter(domenii, function(item) {
            return (item[0].nume == "Reglementari" || item[0].nume == "Sol/Subsol")
    });
    console.log("filtered=",filtered);
    console.log("domenii=",domenii);

我试图从“矩阵”中仅“提取”2个对象，但在执行过滤器之后它变成:

[ [Object {id=3,nume="Reglementari"}], [Object {id=4,nume="Sol/Subsol"}] ]

如何将“已过滤”转换为初始类型，或在不更改其“形式”的情况下对其进行过滤？

Answer 1

要维护对象，您可以减少而不是过滤:

var domenii = {
  Biosecuritate: [{id:1,nume:"bio"}, {id:5,nume:"securitate"}], 
  Deseuri: [{id:2,nume:"des"}] , 
  Reglementari: [{id:3,nume:"Reglementari"}], 
  "Sol/Subsol": [{id:4,nume:"Sol/Subsol"}]
}

var reduced = _.reduce(domenii, function(memo, item, key){
  if(item[0].nume == "Reglementari" || item[0].nume == "Sol/Subsol"){
    memo[key] = item;
  }
  return memo
}, {})

console.log("reduced=",reduced);
console.log("domenii=",domenii);