import { Pipe, PipeTransform } from '@angular/core'; @Pipe({ name: 'filterlistLength' }) export class FilterLengthlistPipe implements PipeTransform { transform(value: any, args?: any): any { if (value && args) { const arr = value.filter((e: any) => e.name.toLowerCase() === args.toLowerCase()); if (arr.length > 0) { return arr; } else { return []; } } return value; } }