Question

我正在尝试过滤服务，但没有过滤从URL获取的数据。下面是我的代码`

getCustomerList(_archid): void {
this.httpClient.get<ICustomer[]>(this.API_URL)
.subscribe(data => {
this.dataChange.next(data.filter(element => element.cat_type ==_archid));
console.log(data);
},
(error: HttpErrorResponse) => {
console.log (error.name + ' ' + error.message);
});
}

Below is my ICustomer interface

export interface ICustomer {
  id:number;
  cat_type:string;
  CustomerName: string;
 }

` _archid是一个字符串，其值为＆＃34; test＆＃34;以下是我的json从服务

`

[
{"id":"2","cat_type":"test","CustomerName": "Accenture"},
{"id":"3","cat_type":"security","CustomerName": },
{"id":"4","cat_type":"test","CustomerName": "TCS"},
{"id":"5","cat_type":"test","CustomerName": "CTS"},
{"id":"6","cat_type":"newarch","CustomerName": "WIPRO"},
{"id":"7","cat_type":"colloboration","CustomerName": "Infosys"}
]

`

Answer 1

我想

Dim regEx As New RegExp

此时数据是ICustomer []的类型吧？所以数组不包含cat_type吗？

.filter(data=>data.cat_type==_archid)

}

在这一行

 getCustomerList(_archid): void {
this.httpClient.get<ICustomer[]>(this.API_URL)
  // .filter(data=>data.filter(x=>x.cat_type) ==_archid )
  .subscribe(data => {
    data.filter(x=>x.cat_type == _archid)
  },
  (error: HttpErrorResponse) => {
    console.log (error.name + ' ' + error.message);
  });

x是一种ICustomer，因此它会过滤热数据。

[我对这个棱角分明的东西很新。所以这只是我的研究]

无法使用角度5

1 个答案: