@angular/forms/signals

pattern

function

Binds a validator to the given path that requires the value to match a specific regex pattern. This function can only be called on string paths. In addition to binding a validator, this function adds PATTERN property to the field.

API

function pattern<TPathKind extends PathKind = PathKind.Root>(
  path: SchemaPath<string, 1, TPathKind>,
  pattern: RegExp | LogicFn<string | undefined, RegExp | undefined, TPathKind>,
  config?: BaseValidatorConfig<string, TPathKind> | undefined,
): void;