CustomRule class

A custom rule built from a user-provided function.

Inheritance

Constructors

CustomRule(String? validator(String? value))
Creates a new CustomRule with the given validator function.
const

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
validator → String? Function(String? value)
The custom validation function.
final

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited
validate(String? value) → String?
Validates the value and returns an error string if it fails, or null if it passes.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited