EndWithValidator class

A validator that checks if the value ends with end.

The EndWithValidator can be used with FieldControllers holding values of type String. It ensures that the value ends with end.

If the value is null it is treated as valid by default.

Properties

• end: The value that the field should end with.
• message: An optional custom error message to display when invalid.

Example

FieldController<String> field = FieldController(
  key: 'string',
  validators:[EndWithValidator('world!')],
);

// If field.value = 'world, hello!', validation fails.
// If field.value = 'hello world!', validation passes.

See also

• FormyValidator, the base class for custom validators.
• ValidationResult, which describes the outcome of validation.
• FieldController, which holds the field value to be validated.