import { Injectable, Pipe, PipeTransform } from '@angular/core'; import { searchString } from '../utils'; @Pipe({ name: 'filter' }) @Injectable() export class FilterPipe implements PipeTransform { transform(items: any[], field: string, value: string): any[] { if (!items) { return []; } if (!value) { return items; } return items.filter(it => searchString(it[field], value)); } }