合并数组里面的数据增加重复数量标记

Posted 2020-10-19 丁丶丁

var arr=[{"itemId":null,"basicItemId":1228,"itemName":"维他柠檬…10ml","unit":null,"costPrice":null,"typeId":null},

             {"itemId":null,"basicItemId":1228,"itemName":"维他柠檬…10ml","unit":null,"costPrice":null,"typeId":null},

             {"itemId":null,"basicItemId":1238,"itemName":"红牛","price":5.98,"icon":"","standard":"250ml","unit":null,"costPrice":null,"typeId":null}]

 

var items = [];

function addItem(newItem){

 

    var exists = false;

    for (var i = 0; i < items.length; i++) {

      var item = items[i];

    if (item.basicItemId == newItem.basicItemId) {

   exists = true;

    item.num = item.num+1;

   break;

   }

}

if(!exists){

 

newItem.num = 1;

items.push(newItem);

}

 

}

 

 

$.each(arr,function(index,val){

   addItem(arr[index])

 

})

 

console.info(items);