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@angular/forms/signals

patternError

function
stablesince v22.0

Create a pattern matching error associated with the target field

Pattern validation

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    API

    function patternError(
  pattern: RegExp,
  options: WithFieldTree<ValidationErrorOptions>,
): PatternValidationError;
function patternError(
  pattern: RegExp,
  options?: ValidationErrorOptions | undefined,
): WithoutFieldTree<PatternValidationError>;
    function patternError(pattern: RegExp, options: WithFieldTree<ValidationErrorOptions>): PatternValidationError;

    Create a pattern matching error associated with the target field

    @parampatternRegExp

    The violated pattern

    @paramoptionsWithFieldTree<ValidationErrorOptions>

    The validation error options

    @returnsPatternValidationError
    function patternError(pattern: RegExp, options?: ValidationErrorOptions | undefined): WithoutFieldTree<PatternValidationError>;

    Create a pattern matching error

    @parampatternRegExp

    The violated pattern

    @paramoptionsValidationErrorOptions | undefined

    The optional validation error options

    @returnsWithoutFieldTree<PatternValidationError>
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