我有可观察的扩展.它工作得很好,但现在我已经更新到角度为6的打字稿2.7.2.
import { Observable } from 'rxjs/Observable';
import { BaseComponent } from './base-component';
import { Subscription } from 'rxjs/Subscription';
import { Subscribable } from 'rxjs';
declare module 'rxjs/Observable' {
export interface Observable<T> {
safeSubscribe<T>(this: Observable<T>,component: BaseComponent,next?: (value: T) => void,error?: (error: T) => void,complete?: () => void): Subscription;
}
}
export function safeSubscribe<T>(this: Observable<T>,complete?: () => void): Subscription {
let sub = this.subscribe(next,error,complete);
component.markForSafeDelete(sub);
return sub;
}
Observable.prototype.safeSubscribe = safeSubscribe;
这段代码不起作用
>’Observable’仅指类型,但在此处用作值.
>’Observable’类型中不存在属性’subscribe’.
https://www.typescriptlang.org/docs/handbook/declaration-merging.html
解决方法
合并声明时,指定的模块路径必须与实际模块的路径完全匹配.
使用RxJS版本6,您将需要更改模块声明,因为内部结构已更改.从记忆中,它应该是：
declare module 'rxjs/internal/Observable' {
export interface Observable<T> {
safeSubscribe<T>(this: Observable<T>,complete?: () => void): Subscription;
}
}
有关示例,请参阅rxjs-compat中的one of the patching imports.
