Contents

Default Literal Types

Type aliases representing the concrete type that a literal takes when no other type information is provided.

Overview

This example declares the numberOfCookies constant, using an integer literal to express its value:

let numberOfCookies = 5
// type(of: numberOfCookies) == Int.self

When a literal expression is written with no type information, Swift uses these type aliases to determine what type to use for the expression. In this case, the numberOfCookies constant has the default type for an integer literal, Int, as designated by the IntegerLiteralType type alias.

Topics

Basic Values

Strings and Text