url static method

String? Function(String?) url({
  1. String? message,
})

Validates URL format

Implementation

static String? Function(String?) url({String? message}) {
  return (String? value) {
    if (value == null || value.trim().isEmpty) {
      return null;
    }

    final urlRegex = RegExp(
      r'^(https?:\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?$',
    );

    if (!urlRegex.hasMatch(value)) {
      return message ?? _defaultMessages['url'];
    }

    return null;
  };
}