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API > @angular/forms

FormControlOptions

Interface for options provided to a FormControl.

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      interface FormControlOptions extends AbstractControlOptions {
  nonNullable?: boolean
  initialValueIsDefault?: boolean

  // inherited from forms/AbstractControlOptions
  validators?: ValidatorFn | ValidatorFn[] | null
  asyncValidators?: AsyncValidatorFn | AsyncValidatorFn[] | null
  updateOn?: 'change' | 'blur' | 'submit'
}

Description

This interface extends all options from AbstractControlOptions, plus some options unique to FormControl.

Properties

Property Description
nonNullable?: boolean

Whether to use the initial value used to construct the FormControl as its default value as well. If this option is false or not provided, the default value of a FormControl is null. When a FormControl is reset without an explicit value, its value reverts to its default value.
initialValueIsDefault?: boolean

Deprecated Use nonNullable instead.