Currently, I am developing a registration form within Angular that mandates users to create a password comprising of both letters and numbers. I am in need of embedding a personalized validator to uphold this regulation. What would be the most practical approach to realize this task in Angular?
My endeavors have led me to formulate a distinctive validator function leveraging Angular's AbstractControl and ValidationErrors, however, I am encountering difficulties in crafting the correct regex pattern to attest to the existence of both letters and numbers within the string.
import { AbstractControl, ValidationErrors, ValidatorFn } from '@angular/forms';
export function containsLettersAndNumbers(): ValidatorFn {
return (control: AbstractControl): ValidationErrors | null => {
const value = control.value;
// Requires assistance with the regex pattern at this juncture
if (/* pattern matches */) {
return null; // Validation is successful
} else {
return { containsLettersAndNumbers: true }; // Validation fails
}
};
}
I have also experimented with integrating the pattern attribute within the HTML template, but this solely scrutinizes a regex pattern and doesn't enforce the presence of both letters and numbers.
<input type="password" formControlName="password" pattern="/* regex pattern */">
No small amount of gratitude will be extended for any guidance or provision of sample code on how to seamlessly implement this custom validator within the realm of Angular. Thank you!