Permutation class
A class that represents a single permutation (reordering) of an item.
The Permutation class holds information about an item being moved
in a list or collection, tracking both its original position and its
new position after the reordering operation.
Constructors
- Permutation({required Key itemKey, required int from, required int to})
Properties
- from → int
-
The original position of the item before the permutation (reordering).
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- itemKey → Key
-
A unique key representing the item being moved.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- to → int
-
The new position of the item after the permutation (reordering).
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
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited