全局可用的定制管道

要使应用程序范围内的自定义管道可用,请在应用程序引导期间扩展 PLATFORM_PIPES。

import { bootstrap }    from '@angular/platform-browser-dynamic';
import { provide, PLATFORM_PIPES } from '@angular/core';

import { AppComponent } from './app.component';
import { MyPipe } from './my.pipe'; // your custom pipe

bootstrap(AppComponent, [
  provide(PLATFORM_PIPES, {
            useValue: [
                MyPipe 
            ],
            multi: true
        })
]);

教程: https//scotch.io/tutorials/create-a-globally-available-custom-pipe-in​​-angular-2