在Angular中执行HTTP请求时遇到延迟的问题,可能是因为异步操作的原因。以下是可能的解决方法:
import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
@Injectable()
export class MyService {
constructor(private http: HttpClient) { }
getData(): Observable {
return this.http.get('https://api.example.com/data');
}
}
import { HttpClient } from '@angular/common/http';
@Injectable()
export class MyService {
constructor(private http: HttpClient) { }
getData(): Promise {
return this.http.get('https://api.example.com/data').toPromise();
}
}
import { HttpClient } from '@angular/common/http';
@Injectable()
export class MyService {
constructor(private http: HttpClient) { }
async getData(): Promise {
const data = await this.http.get('https://api.example.com/data').toPromise();
return data;
}
}
以上是三种常用的解决方法,可以根据具体情况选择适合的方法来解决Angular的HTTP请求执行太晚的问题。