exemple of pipe for Countries abbreviations

CountryPipePipe.ts

import { Pipe, PipeTransform } from '@angular/core';
@Pipe({
 name: 'country'
})
export class CountryPipe implements PipeTransform {
 transform(value: any, args?: any): any {
     switch (value) {
       case 'dz' : return ' Algeria';
       case 'be' : return ' Belgium';
       case 'tn' : return ' Tunisia';
     }
 }
}