Fallback Value vs Default Value

[tadbyt]

Location

https://docs.swift.org/swift-book/documentation/the-swift-programming-language/thebasics#Providing-a-Fallback-Value https://docs.swift.org/swift-book/documentation/the-swift-programming-language/basicoperators#Nil-Coalescing-Operator

Description

With respect to the right operand of the nil-coalescing operator, it is referred to as default value in three subsections and as the fallback value in two subsections.

In the Control Flow subsection of the A Swift Tour section, the term default value is used. In the nil subsection of the The Basics section, the term fallback value is used. In the Providing a Fallback Value subsection of the The Basics section, both terms are used, but not connected. In the Nil-Coalescing Operator subsection of the Basic Operators section, the term default value is used.

Either one term should be used exclusively or a connection between the terms should be made.

Correction

In the Providing a Fallback Value subsection, reword the first sentence to: Another way to handle a missing value is to supply a default value, termed a fallback value, using the nil-coalescing operator (??). In the Nil-Coalescing Operator subsection, replace the term default value with fallback value (twice).