Ability to Undo an Action
Explore how to apply the Memento and Command design patterns to enable undo functionality in your software. Understand the benefits of storing object state snapshots and executing reversible commands to improve code maintainability and memory usage.
Problem statement
Our software needs to be able to include undo functionality, which, these days, is present in most user interfaces that allow us to edit content.
This is a problem that UI developers have been required to deal with for decades, and so, it can be solved by a number of standardized design patterns.
Suitable design patterns
Let’s discuss some design patterns suitable to be used when undoing an action. ...