List

The list method is used to validate a list of objects that shares the same schema.

INFO

After the validation of the objects in the list, the list itself is validated.

import 'package:acanthis/acanthis.dart';

void main() {
  final list = string().min(3).list();

  final result = list.tryParse(['Francesco', '255']);

  if (result.success) {
	print('The schema is valid!');
  } else {
	print('The schema is invalid!');
  }
}

TIP

The AcanthisParseResult object, that is returned by the parse and tryParse method is described here.

min

The min method is used to validate the minimum length of a list.

import 'package:acanthis/acanthis.dart';

void main() {
  final list = string().min(3).list().min(2);

  final result = list.tryParse(['Francesco', '255']);

  if (result.success) {
	print('The schema is valid!');
  } else {
	print('The schema is invalid!');
  }
}

max

The max method is used to validate the maximum length of a list.

import 'package:acanthis/acanthis.dart';

void main() {
  final list = string().min(3).list().max(2);

  final result = list.tryParse(['Francesco', '255']);

  if (result.success) {
	print('The schema is valid!');
  } else {
	print('The schema is invalid!');
  }
}

length

The length method is used to validate the exact length of a list.

import 'package:acanthis/acanthis.dart';

void main() {
  final list = string().min(3).list().length(2);

  final result = list.tryParse(['Francesco', '255']);

  if (result.success) {
	print('The schema is valid!');
  } else {
	print('The schema is invalid!');
  }
}

unique

The unique method is used to validate that a list contains unique elements.

import 'package:acanthis/acanthis.dart';

void main() {
  final list = string().min(3).list().unique();

  final result = list.tryParse(['Francesco', '255']);

  if (result.success) {
	print('The schema is valid!');
  } else {
	print('The schema is invalid!');
  }
}