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alexonozor/custom_validation.ts

Created September 2, 2017 06:08
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custom_validation.ts
/** A user name can't match the given regular expression */
export function forbiddenUserNameValidator(nameRe: RegExp): ValidatorFn {
return (control: AbstractControl): {[key: string]: any} => {
const forbidden = nameRe.test(control.value);
return forbidden ? {'forbiddenName': {value: control.value}} : null;
};
}
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