RequiredValidator

Stable Directive

Class Overview

class RequiredValidator implements Validator {
  required : boolean
  validate(c: AbstractControl) : {[key: string]: any}
  registerOnValidatorChange(fn: () => void) : void
}

Selectors

:not([type=checkbox])[required][formControlName]

:not([type=checkbox])[required][formControl]

:not([type=checkbox])[required][ngModel]

Class Description

A Directive that adds the required validator to any controls marked with the required attribute, via the NG_VALIDATORS binding.

Example

<input name="fullName" ngModel required>

Class Details

required : boolean

validate(c: AbstractControl) : {[key: string]: any}

registerOnValidatorChange(fn: () => void) : void

exported from @angular/forms/index, defined in @angular/forms/src/directives/validators.ts