Question

基本上我有一个角度分量，它正在从WEBApi处获得响应，如下所示

export class FetchDataComponent implements OnInit {

    constructor(private _httpService: Http) { }

    City: string[] = [];


    ngOnInit() {

        // city and country

        this._httpService.get('/api/City').subscribe(values => {

            this.City = values.json() as string[];

        });


    }
}

我在这里收到的回复是[“ Waterloo”，“ Canada”]

如何从以上回复中提取城市滑铁卢？根据要求，我需要在这里做。

我试图将滑铁卢存储在单独的变量中，将加拿大存储在单独的变量中。

Answer 1

我不确定我是否理解你的问题。如果您想从City对象中获取“滑铁卢”，则只需使用Array.find

var item = this.City.find(x => x == 'Waterloo');

Answer 2

响应为字符串数组：

City: string[] = [];
var1: string;
var2: string;
ngOnInit() {    
    this._httpService.get('/api/City').subscribe(values => {
        this.City = values.json() as string[];
        this.var1 = this.City[0];
        this.var2 = this.City[1];
    });
}

Answer 3

City: string[] = [];
ngOnInit() {    
    this._httpService.get('/api/City').subscribe(values => {
        this.City = values.json() as string[];
        var city = this.City.find(x => x === 'Waterloo'(please input city you want to get));
    });
}

从Angular组件的Json Response中提取数据

3 个答案: