Subscripts

Hello,

Subscripts are a shortcut to access member items of a collection, list, or directory.

Use subscripts to set and retrieve values ​​according to the index without the need for separate getter and setter methods.

// The use of arrays in literal form is an example of subscripts.

var swiftArray = [ "Apple" , "Google" , "Amazon" , "Microsoft" ] 
swiftArray [ 2 ] = "IBM" 
print(swiftArray)

//replaced Amazon with IBM at index 2. index in array start from 0.

Subscript can be defined for classes, structs, and enums.

Subscripts are used to access the elements of a collection-type object. We can use subscripts to get and get according to the index.