Question

我的问题是我得到的数据是可观察的，所以我检查数据是否未定义，当它没有未定义时，我把它放入医生对象但是我的一些代码在填充之前使用数据并生成错误，因为 value未定义如何获取变量中的响应值。

    workingDayFilter = ( d: Date ): boolean => {
    const day = d.getDay();
    let workingDays = this.doctor.workingDays;
    let result: boolean = false;

    for ( let i = 0; i < workingDays.length; i++ ) {
        if ( day == workingDays[i] ) {
            result = true;
        }
    }

    return result;

}


ngOnInit() {

    this.getDoctor();


    console.log( this.doctor );
    this.appointmentForm = this.formBuilder.group( {
        patientId: this.patientId,
        date: this.date,
        timeSlot: this.timeSlot
    } );

}
public getDoctor() {
    this.doctorService.getDoctorPublicInfo().subscribe(( data ) => {
        if ( data != undefined ) {
            this.doctor = data.json();
        }
    } );
}

Answer 1

尝试这样的事情

 ngOnInit() {

 this.getDoctor().subscribe((data) => {


    console.log(this.doctor);
    this.appointmentForm = this.formBuilder.group({
        patientId: this.patientId,
        date: this.date,
        timeSlot: this.timeSlot
    });
})

};
public getDoctor() {
 this.doctorService.getDoctorPublicInfo().map((resp) => {
    if (resp != undefined) {
        this.doctor = resp.json();
    }
});

}

如何从角4可观察到的响应中获得价值？

1 个答案: