Question

我给了一个大数组，然后我必须将数据传输到一个不同的数组，具体取决于类型是＆＃34;客户＆＃34; ＆＃34;存储＆＃34;或＆＃34;地址＆＃34;但是我得到了以下错误;我不知道为什么

/*
Exception: ReferenceError: store is not defined
CustomerDB.insertData@Scratchpad/1:56:17
@Scratchpad/1:105:1
*/


var allData = [
{type:"store", data:{store_id: 297, name: "Scotiabank - Main Branch",     address_id: 1023}},
{type:"store", data:{store_id: 614, name: "Scotiabank - Hamilton",  address_id: 1984}},
{type:"customer", data:{customer_id: 24, store_id:614, first_name:  "Jonathan", last_name: "Pym", email: "jjpym@yahoo.ca", address_id: 1611, add_date: null}},
{type:"customer", data:{customer_id: 36, store_id:193, first_name: "Kaitlyn", last_name: "Adams", email: "katy38@hotmail.com", address_id: 5464, add_date: null}},
{type:"customer", data:{customer_id: 73, store_id:297, first_name: "Melissa", last_name: "Bennett", email: "mbennett@gmail.com", address_id: 4536, add_date: null}},        
{type:"address", data:{address_id: 1023, address: "2895 Yonge St.",     city:"Toronto", province:"ON", postal_code:"L4C02G"}},
{type:"address", data:{address_id: 1984, address: "3611 Main St. West", city:"Hamilton", province:"ON", postal_code:"R5O8H5"}},
{type:"address", data:{address_id: 1757, address: "1177 Ontario St. Unit 8", city:"Mississauga", province:"ON", postal_code:"L9H6B3"}},
{type:"address", data:{address_id: 4536, address: "3945 John St.", city: "Ajax", province: "ON", postal_code: "L7M4T9"}},

var CustomerDB =
{
    customer:[],
    address:[],
    store:[],

    insertData:function (allData)
    {
      for (var i = 0; i < allData.length; i++)
      {     
       if (allData[i].type == "store")
          {
            store[i].push(allData[i].store_id, allData[i].name, allData[i].address_id);

          }
        else if (allData[i].type == "customer")
          {
            this[i].add_date = new Date();
            customer[i].push(allData[i].customer_id, allData[i].store_id, allData[i].first_name, allData[i].last_name, allData[i].email, allData[i].addess_id, allData[i].add_date);
          }
        else if (allData[i].type == "address")
          {
            address[i].push(allData[i].address_id, allData[i].address, allData[i].city, allData[i].province, allData[i].cpostal_code);
          }
      }
    }
}
CustomerDB.insertData(allData);

Answer 1

虽然我仍然认为https://stackoverflow.com/a/42182030/6647153是最好的答案。但是你走了：

这是主要问题：您必须使用this关键字来访问属性（数组）store，cutomer和adress。
推送到阵列时，您不需要使用下标。
您必须将数据包装在对象中以保持分组。（这里我使用了原始对象）

试试这个：

insertData: function (allData) {
    for (var i = 0; i < allData.length; i++) {     
        if (allData[i].type == "store") {
            this.store.push(allData[i]);
        }
        else if (allData[i].type == "customer") {
            allData[i].add_date = new Date();
            this.customer.push(allData[i]);
        }
        else if (allData[i].type == "address") {
            this.adress(allData[i]);
        }
    }
}

如果要复制对象而不是按原始对象，请使用以下函数：

function clone(obj) {
    var newObj = {};
    for(var key in obj)
        newObj[key] = obj[key];
    return newObj;
}

并称之为：

insertData: function (allData) {
    for (var i = 0; i < allData.length; i++) { 
        var o = clone(allData[i]);
        var type = o.type;
        delete o.type; // to remove the type if you want
        if (type == "store") {
            this.store.push(o);
        }
        else if (type == "customer") {
            var o.add_date = new Date();
            this.customer.push(o);
        }
        else if (type == "address") {
            this.adress(o);
        }
    }
}

不确定定义错误

1 个答案: