validateWebsite static method

String? validateWebsite(
  1. String? value
)

Ensures that a provided string is the same form as a valid URL

Implementation

static String? validateWebsite(String? value) {
  if (value == null) {
    return 'Value cannot be empty';
  }
  final regex = RegExp(
    r'^(https?|ftp)://[^\s/$.?#].\S*$',
    caseSensitive: false,
    multiLine: false,
  );

  if (!regex.hasMatch(value)) {
    return 'Value must be a valid website URL';
  }

  return null;
}