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如何使用 Lodash 將兩個幾乎相同的 JavaScript 對象合並為一個?

[英]How can I merge two almost identical javascript objects into one using Lodash?

我有一個數組,其中包含許多幾乎相同的對象。 我想將這些對象合二為一,同時保留它們之間不相同的數據。

這是我的數據:

[
  { id: 1,
    title: 'The title',
    description: 'The description',
    categories: [ 
      {id: 1, name: 'Cat 1'} 
    ] 
  }, 
  { id: 1,
    title: 'The title',
    description: 'The description',
    categories: [ 
      {id: 2, name: 'Cat 2'} 
    ] 
  } 
]

我希望最終結果是:

[
  { id: 1,
    title: 'The title',
    description: 'The description',
    categories: [ 
      {id: 1, name: 'Cat 1'}, 
      {id: 2, name: 'Cat 2'} 
    ] 
  } 
]

任何幫助,將不勝感激!

var a1 = [
  { id: 1,
    title: 'The title',
    description: 'The description',
    categories: [ 
      {id: 1, name: 'Cat 1'} 
    ] 
  }, 
  { id: 1,
    title: 'The title',
    description: 'The description',
    categories: [ 
      {id: 2, name: 'Cat 2'} 
    ] 
  } 
];
var a2 = [];

_.forEach(a1, function(item){
    if(a2.length === 0){
    a2.push(item);
  }else{
    _.forIn(item, function(value, key){
         if(!a2[0].hasOwnProperty(key)){
        a2[0][key] = value;
       }else{
            if(typeof value === "object" && value.length > 0){
            _.forEach(value, function(v){
                    console.log("Pushing Item into Categories")
                    a2[0][key].push(v);
            })
          }
       }
    })
  }

})

console.log(a2)

這不是最優雅的解決方案,但它完成了工作,並將“a1”的任何長度數組組合成一個長度為 1 對象的數組,並在它迭代的項目中組合任何嵌套數組。

所以,它也可以在下面的數組上工作……只是為了舉例:

var a1 = [
  { id: 1,
    title: 'The title',
    description: 'The description',
    categories: [ 
      {id: 1, name: 'Cat 1'} 
    ],
    franks: [
        {"blaH":"blah"}
    ]
  }, 
  { id: 1,
    title: 'The title',
    description: 'The description',
    categories: [ 
      {id: 2, name: 'Cat 2'} 
    ] ,
    franks: [
        {"blaH":"blah1"}
    ]
  } ,
  { id: 1,
    title: 'The title',
    description: 'The description',
    categories: [ 
      {id: 2, name: 'Cat 2'} 
    ] ,
    franks: [
        {"blaH":"blah2"},
      {"blaH":"blah3"}
    ]
  } 
];

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