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This is the archived documentation for Angular v17. Please visit angular.dev to see this page for the current version of Angular.

MinLengthValidator

A directive that adds minimum length validation to controls marked with the minlength attribute. The directive is provided with the NG_VALIDATORS multi-provider list.

See also

Exported from

Selectors

Properties

Property Description
@Input()
minlength: string | number | null

Tracks changes to the minimum length bound to this directive.

Description

Adding a minimum length validator

The following example shows how to add a minimum length validator to an input attached to an ngModel binding.

      
      <input name="firstName" ngModel minlength="4">