Variant class

A feature flag variant containing the evaluated value and metadata.

Returned by ExperimentClient.variant and as values in the map from ExperimentClient.all. Can also be used as a fallback variant in ExperimentConfig.fallbackVariant or ExperimentConfig.initialVariants.

Constructors

Variant({String? key, String? value, Object? payload, String? expKey, Map<String, Object?>? metadata})
Creates a Variant with the given fields.
const

Properties

expKey → String?
The experiment key that produced this variant, if applicable.
final
hashCode → int
The hash code for this object.
no setteroverride
key → String?
The variant key, typically used to identify the variant assignment.
final
metadata → Map<String, Object?>?
Additional metadata associated with this variant.
final
payload → Object?
An optional dynamic payload attached to the variant.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
value → String?
The variant value, such as 'on', 'control', or 'treatment'.
final

Methods

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.
override