👉 A "undoer" in programming refers to an object or function that performs a specific task and returns the original value of the same variable when it is called. The purpose of this object or function is to restore the state of the program after a certain action, such as changing a variable's value or performing a specific operation. For example, if we have a function `doSomething` that takes an integer argument and prints its value, and we call `undoer.doSomething(10)`
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What is the definition of Undoer? 🙋
👉 In computer science, a "undoer" is an entity that can perform operations on data in a program. These operations are often used to manipulate state or data during a process, such as when manipulating variables, making changes to files, or performing actions on databases. For example, consider a scenario where you have a program that deals with a database and needs to update the values of certain columns in the database. You might create an "undoer" class that can perform these updates by setting the
