What are Enums?

When writing programs, you often need to represent a fixed set of related values. For example, the days of the week, different weather conditions, or the status of a task. Instead of using strings like "Monday", "Tuesday" or integers like 1, 2, Dart provides a better solution called Enumerations or Enums.

An enum is a special data type that defines a collection of named constant values. Think of it as creating your own custom type with a limited set of possible values that never change.

enum Day {
  monday,
  tuesday,
  wednesday,
  thursday,
  friday,
  saturday,
  sunday
}

Using enums makes your code more readable and safer. Instead of remembering that 1 means Monday and 2 means Tuesday, you can use Day.monday and Day.tuesday. This prevents typos and makes your intentions clear to anyone reading your code.

Enums are particularly useful when you have a variable that can only hold one of several predefined values, making your programs more reliable and easier to understand.