在Angular 2应用程序中过滤多维数组

multiDimensionalArray: any[][] = [
  [1, 2, 3],
  [4, 5, 6],
  [7, 8, 9]
];

<div *ngFor="let row of multiDimensionalArray">
  <div *ngFor="let item of row | filter: '>5'">{{ item }}</div>
</div>

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

@Pipe({
  name: 'filter'
})
export class FilterPipe implements PipeTransform {
  transform(array: any[], condition: string): any[] {
    // 这里实现过滤逻辑
    return array.filter(item => eval(`${item}${condition}`));
  }
}

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

import { AppComponent } from './app.component';
import { FilterPipe } from './filter.pipe';

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