Swift Comments: Guide to Single-Line and Multi-Line Comments

Tags: Swift, Comments, Syntax

Welcome to another tutorial in our Swift series! In this tutorial, we will explore the different forms of comments in Swift: single-line and multi-line comments.

Single-Line Comments

A single-line comment in Swift is denoted by the double forward-slash (//). It is used to add explanatory or descriptive notes to a specific line of code. Here’s an example:

let a = 1 // This is a comment

As you can see, the comment follows the code on the same line. Single-line comments can be used to provide additional context or to temporarily disable a line of code.

Multi-Line Comments

In Swift, multi-line comments allow you to comment out multiple lines of code or provide more detailed explanations. They are enclosed between /* and */ symbols. Here’s an example:

/* 
This
is 
a multi-line
comment 
*/

Multi-line comments are useful when you want to comment out a block of code or provide extensive documentation. You can also use them to temporarily disable a section of code.

Nesting Multi-Line Comments

Swift allows you to nest multi-line comments within each other. This feature comes in handy when you need to comment out large portions of code that already contain multi-line comments. Here’s an example:

/* 
This
is 
a /* nested */ multi-line
comment 
*/

Nested comments are a powerful tool for organizing your code and making it more readable.

And that’s it for our guide to Swift comments! With single-line and multi-line comments at your disposal, you can add clarity and documentation to your code. Happy coding!

Tags: Swift, Comments, Syntax