Enums in swift

An enumeration is a data type consisting of a set of named values, called members. Apple doc says:

An enumeration defines a common type for a group of related values and enables you to work with those values in a type-safe way within your code.

Enumerations in Swift are much more flexible, and do not have to provide a value for each case of the enumeration. If a value (known as a “raw” value) is provided for each enumeration case, the value can be a string, a character, or a value of any integer or floating-point type.

Enumeration Syntax

You introduce enumerations with the enum keyword and place their entire definition within a pair of braces:

enum SomeEnumeration {
// enumeration definition goes here
}

example with type:

enum Gender :String{
case male
case female
}

example without type:

enum Gender {
case male
case female
}

The values defined in an enumeration (such as Male and Female) are its enumeration cases. You use the case keyword to introduce new enumeration cases.

Alternatively, you can declare it like :

enum Gender :String {
case male, female // in a single line like…