cardNumber

import { Component } from '@angular/core';
import { WrInput } from 'ngwr/input';
import { WrValidators } from 'ngwr/validators';

@Component({ imports: [WrInput] })
export class MyComponent {}

import { FormControl } from '@angular/forms';
import { WrValidators } from 'ngwr/validators';

const card = new FormControl('', [WrValidators.cardNumber]);

card.setValue('4242 4242 4242 4242'); // valid
card.setValue('1234567890123456');    // { cardNumber: true }