refactor: use numberAttribute

Author: soliyn

apps/signal/43-signal-input/src/app/user.component.ts

@@ -4,6 +4,7 @@ import {
  Component,
  computed,
  input,
+ numberAttribute,
 } from '@angular/core';
 
 type Category = 'Youth' | 'Junior' | 'Open' | 'Senior';
@@ -28,11 +29,8 @@ const ageToCategory = (age: number): Category => {
 export class UserComponent {
  name = input.required<string>();
  lastName = input<string>();
- age = input(0, {
- transform: (value: number | string) =>
- typeof value === 'string' ? Number(value) : value,
- });
+ age = input(0, { transform: numberAttribute });
 
  fullName = computed(() => `${this.name()} ${this.lastName() ?? ''}`);
- category = computed<Category>(() => ageToCategory(this.age() ?? 0));
+ category = computed<Category>(() => ageToCategory(this.age()));
 }