PatternValidator

From Get docs
< @angular/formsAngular/docs/11/api/forms/patternvalidator


PatternValidator

directive

A directive that adds regex pattern validation to controls marked with the pattern attribute. The regex must match the entire control value. The directive is provided with the NG_VALIDATORS multi-provider list.

See also

Exported from

Selectors

  • [pattern][formControlName]
  • [pattern][formControl]
  • [pattern][ngModel]

Properties

Property Description
RegExp Tracks changes to the pattern bound to this directive.

Description

Adding a pattern validator

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

<input name="firstName" ngModel pattern="[a-zA-Z ]*">

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Licensed under the Creative Commons Attribution License 4.0.
https://v11.angular.io/api/forms/PatternValidator