我正在尝试从输入事件创建一个Observable . 我已经尝试了几乎所有东西,我无法导入“fromEvent” . 这是我的代码 . 我使用角度6.0.1和RXJS 6.1.0
error TS2339: Property 'fromEvent' does not exist on type 'typeof Observable'.
import { Directive, EventEmitter, Input, Output, ElementRef, ViewChild, AfterViewInit } from '@angular/core';
import { NgControl } from '@angular/forms';
import { distinctUntilChanged } from 'rxjs/internal/operators/distinctUntilChanged';
import { debounceTime } from 'rxjs/internal/operators/debounceTime';
import { map } from 'rxjs/internal/operators/map';
import { filter } from 'rxjs/internal/operators/filter';
import { Observable } from 'rxjs/internal/Observable';
//import 'rxjs/internal/observable/fromEvent';
//import 'rxjs/add/observable/fromEvent';
@Directive({
selector: '[ngModel][debounceTime]'
})
export class InputDebounceDirective implements AfterViewInit {
@Output()
public onDebounce = new EventEmitter<any>();
@Input('debounceTime')
public debounceTime: number = 1500;
constructor(private elementRef: ElementRef, private currentModel: NgControl) { }
ngAfterViewInit() {
Observable.fromEvent(this.elementRef.nativeElement, 'keyup')
.pipe(
debounceTime(this.debounceTime),
distinctUntilChanged()
)
.subscribe(x => {
this.onDebounce.emit(x);
});
}
}
1 回答
您必须在RxJS6中导入
fromEvent
,如下所示:阅读migration guide以获取更多信息,特别是在那里查看import paths部分 .
使用
fromEvent
时,请将其用作以下函数:不是如下的静态方法(这在以前的RxJS版本中是正确的)