Question

这里我的方法工作正常，能够订阅结果。

fetchIncidentDetails(incidentId: number): Observable<any> {
    const url = `${AppUtils.INCIDENT_SEARCH}/${incidentId}/${+localStorage.getItem(AppUtils.PERSON_CODE)}`;
    let incident: Observable<IncidentReportModel>; 
    incident= this.http.get(url)
        .map(response => response.json().result)
        .catch(this.handleError);

    return incident;
}


public setIncidents(incidents: IncidentReportModel) {
    this.incidents = incidents;
}

如果我在地图中添加一个语句，则无法订阅响应。我需要设置响应值。我怎样才能做到这一点。

.map(response =>{response.json().result;  this.setIncidents(response.json().result)})})

Answer 1

我如何理解你想做这样的事情

fetchIncidentDetails(incidentId: number): Observable<any> {
    const url = `${AppUtils.INCIDENT_SEARCH}/${incidentId}/${+localStorage.getItem(AppUtils.PERSON_CODE)}`;
    let incident: Observable<IncidentReportModel>; 
    incident= this.http.get(url)
        .map(response => {
            this.setIncidents(response.json().result)
            return response.json().result
             })
        .catch(this.handleError);

    return incident;
}

了解java scrippt

中的工作arrow function

(param1, param2, …, paramN) => expression
// equivalent to: (param1, param2, …, paramN) => { return expression; }

在可观察的Map中添加更多语句

1 个答案: