IsOptional class

allows you to skip the errors if the input is null

• if the input is null and fails any role
• with instance of this class the qValidator will ignore the field rule

Inheritance

• Object
• TextValidationRule
• IsOptional

Constructors

IsOptional([String? error])

Properties

error → String?

passed throw constructor to skip localized error

final, inherited

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

isValid(String input) → bool

return a bool Either valid or NOT

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited