zipcode-directive.ts

import { Directive } from '@angular/core';
import { NG_VALIDATORS } from '@angular/forms';
import { zipCodeValidator } from '../forms/validators';
@Directive({
  selector: '[appZipCode][ngModel]',
  providers: [
    {
      provide: NG_VALIDATORS,
      useValue: zipCodeValidator,
      multi: true
    }
  ]
})
export class ZipCodeDirective {
  constructor() { }
}