Question

我正在尝试将数据推入对象内的数组。数组是对象的数组（在代码中更清楚）。

主要代码有效，它可以正确分割有效负载，但是主要ecommObj不能正确输出数组。

请帮助。

我尝试使用concat，push，push.apply，最后我在其中留下了“ =”。我只是个主意。

  var siteMerch = [
  {"placement": "homepage","position": "T1","campaignName": "poloshirts","campaignStartDate": "12-08-19"},
  {"placement": "homepage","position": "T2","campaignName": "groomingbestsellers","campaignStartDate": "12-08-19"},
  {"placement": "homepage","position": "T3","campaignName": "journalhowtobuyasuitonline","campaignStartDate": "12-08-19"},
  {"placement": "homepage","position": "WN","campaignName": "newarrivals","campaignStartDate": "12-08-19"},
  {"placement": "homepage","position": "C1","campaignName": "fourwaystorunbetter","campaignStartDate": "15-08-19"},
  {"placement": "homepage","position": "M1","campaignName": "mrpcap8tshirts","campaignStartDate": "12-08-19"},
  {"placement": "homepage","position": "T1","campaignName": "poloshirts","campaignStartDate": "12-08-19"},
  {"placement": "homepage","position": "T2","campaignName": "groomingbestsellers","campaignStartDate": "12-08-19"},
  {"placement": "homepage","position": "T3","campaignName": "journalhowtobuyasuitonline","campaignStartDate": "12-08-19"},
  {"placement": "homepage","position": "WN","campaignName": "newarrivals","campaignStartDate": "12-08-19"},
  {"placement": "homepage","position": "C1","campaignName": "fourwaystorunbetter","campaignStartDate": "15-08-19"},
  {"placement": "homepage","position": "M1","campaignName": "mrpcap8tshirts","campaignStartDate": "12-08-19"}
  ];

  var payLoad = 5;
  var del = "-_-";
  var chunk = [];
  var promotions = siteMerch.map(function(i){
  let promotion = {
      'id':i.placement + del + i.campaignName + del + i.campaignStartDate + del + i.position,
      'name':i.campaignName + " - " + i.campaignStartDate,
      'creative':i.placement,
      'position':i.position
  }
  return promotion;
  })

  var ecommObj = {
    event: 'EEC Promo View',
      ecommerce: {
        promoView: {
            promotions: []
        }
      }
  };  

   while (promotions.length) {
    chunk = promotions.splice(0,payLoad);
    ecommObj.ecommerce.promoView.promotions = chunk; //The issue is HERE.
    console.log(ecommObj); //This will be a dataLayer push later on, I'm just checking it first
    ecommObj.ecommerce.promoView.promotions.length = 0;
  }

我希望我的ecommObj.ecommerce.promoView.promotions在那里包含5个对象的有效载荷，但是当前控制台显示输出具有空白数组。

Answer 1

您的代码运行正常。您认为是其他原因，因为在控制台中通过浏览对象检查器来检索数组时，该数组已更改。

替换

console.log(ecommObj);

使用

console.log(ecommObj.ecommerce.promoView.promotions);

或

console.log(JSON.stringify(ecommObj));

，您会看到它有效。

顺便说一下，promotions: []和ecommObj.ecommerce.promoView.promotions.length = 0;都是不需要的，可以删除。

将对象数组推入对象内的数组

1 个答案: