ValidatorFn

interface

A function that receives a control and synchronously returns a map of validation errors if present, otherwise null.

interface ValidatorFn {
  (control: AbstractControl): ValidationErrors | null
}

Methods

call signature

(control: AbstractControl): ValidationErrors | null

Parameters
control AbstractControl
Returns

ValidationErrors | null

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Licensed under the Creative Commons Attribution License 4.0.
https://v9.angular.io/api/forms/ValidatorFn