如何基于Javascript中的属性组合两个大小不同的对象数组? [英] How to combine two array of objects of different sizes, based on a property in Javascript?

问题描述

我有两个对象数组，它们的长度不同，但共享相似的信息.

I have two arrays of objects that are different in length but share similar information.

qrySearchLocID = [{
    LocalLabID: '123f',
    SystemID: 5000152,
    AppLabID: 3
  },
  {
    LocalLabID: '12BC',
    SystemID: 5000384,
    AppLabID: 3
  },
];

和

qrySearch = [{
    sName: 'SomePlace1',
    lBusinessID: 37343,
    SystemID: 5000152
  },
  {
    sName: 'SomePlace2',
    lBusinessID: 39780,
    SystemID: 5000156
  },
  {
    sName: 'SomePlace3',
    lBusinessID: 50772,
    SystemID: 5000519
  },
  {
    sName: 'SomePlace4',
    lBusinessID: 31079,
    SystemID: 5000384
  },
]

我想基于SystemID合并这两个数组，从qrySearch复制所有信息，并从qrySearchLocID添加LocalLabID，仅此而已.例如，我希望结果数组为

I want to combine these two arrays based on the SystemID, copy all the information from qrySearch and add the LocalLabID from qrySearchLocID and nothing else. For example I want the result array to be

[{
    sName: 'SomePlace1',
    lBusinessID: 37343,
    SystemID: 5000152,
    LocalLabID: '123f'
  },
  {
    sName: 'SomePlace2',
    lBusinessID: 39780,
    SystemID: 5000156
  },
  {
    sName: 'SomePlace3',
    lBusinessID: 50772,
    SystemID: 5000519
  },
  {
    sName: 'SomePlace4',
    lBusinessID: 31079,
    SystemID: 5000384,
    LocalLabID: '12BC'
  },
]

谢谢.

推荐答案

您可以使用map和find函数.

var qrySearchLocID = [{
    LocalLabID: '123f',
    SystemID: 5000152,
    AppLabID: 3
  },
  {
    LocalLabID: '12BC',
    SystemID: 5000384,
    AppLabID: 3
  },
];

var qrySearch = [{
    sName: 'SomePlace1',
    lBusinessID: 37343,
    SystemID: 5000152
  },
  {
    sName: 'SomePlace2',
    lBusinessID: 39780,
    SystemID: 5000156
  },
  {
    sName: 'SomePlace3',
    lBusinessID: 50772,
    SystemID: 5000519
  },
  {
    sName: 'SomePlace4',
    lBusinessID: 31079,
    SystemID: 5000384
  },
];

var result = qrySearch.map((e, _) => 
          (_ = qrySearchLocID.find((q) => q.SystemID === e.SystemID)) ? 
          { ...e, ...{ LocalLabID: _.LocalLabID } } : e);

console.log(result);

• Array.prototype.map()
• Array.prototype.find()

这篇关于如何基于Javascript中的属性组合两个大小不同的对象数组?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！