ngx-custom-validators
Version:
Angular custom directives for validation
10 lines • 1.74 kB
JavaScript
import { Validators } from '@angular/forms';
import { isPresent } from '../util/lang';
export const base64 = (control) => {
if (isPresent(Validators.required(control))) {
return null;
}
const v = control.value;
return /^(?:[A-Z0-9+\/]{4})*(?:[A-Z0-9+\/]{2}==|[A-Z0-9+\/]{3}=|[A-Z0-9+\/]{4})$/i.test(v) ? null : { base64: true };
};
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