是否有一种方法可以在ng中搜索

<input type="text" ng-model="searchText">
<ul>
  <li ng-repeat="item in items | filter:searchText">{{item}}</li>
</ul>

import { Pipe, PipeTransform } from '@angular/core';

@Pipe({
  name: 'search'
})
export class SearchPipe implements PipeTransform {
  transform(items: any[], searchText: string): any[] {
    if (!items) return [];
    if (!searchText) return items;
    searchText = searchText.toLowerCase();
    return items.filter(item => {
      return item.toLowerCase().includes(searchText);
    });
  }
}

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';

import { AppComponent } from './app.component';
import { SearchPipe } from './search.pipe';

@NgModule({
  declarations: [
    AppComponent,
    SearchPipe
  ],
  imports: [
    BrowserModule,
    FormsModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

<input type="text" [(ngModel)]="searchText">
<ul>
  <li *ngFor="let item of items | search:searchText">{{item}}</li>
</ul>