Digit class

Digit - any one of the ten numbers 0 to 9.

For example, the values "1" and "123" are valid; whereas the values "A", "12A", "123.34", "9.99" are invalid.

Blank field — null or empty — is a valid input.

If the field is mandatory, see ReqDigit or Req.

Constructors

Digit({String? mal})

Constrains the input data to the digits 0-9.

Digit.len(int len, {String? mal, String? diff})

Constrains the input data to the digits 0-9 and its length (number of digits) to len digits.

Digit.max(int max, {String? mal, String? long})

Constrains the input data to the digits 0-9 and its length (number of digits) to a maximum of max digits.

Digit.min(int min, {String? mal, String? short})

Constrains the input data to the digits 0-9 and its length (number of digits) to a minimum of min digits.

Digit.range(int min, int max, {String? mal, String? short, String? long})

Constrains the input data to the digits 0-9 and its length (number of digits) within the range min–max.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

call(String? digits) → String?

Valid - returns null - if digits has only digits or is null.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited