Swift Naming Conventions

In this article, we'll go over Swift naming conventions.

In programming, naming conventions are the rules you follow when giving names to variables, functions, classes, and so on.

Even if you don't follow these rules, your code will usually still work. However, it's generally a good idea to stick to the conventions recommended for each language whenever possible.

Common Terms Used in Naming Conventions

Let's first look at some common terms you'll often see when talking about naming conventions in programming.

Pascal Case (Upper Camel Case)
When joining words, the first letter of each word is capitalized. Example: GetMethodName

Camel Case (Lower Camel Case)
The first letter of the first word is lowercase, and the first letter of each following word is capitalized. Example: getMethodName

Snake Case
All lowercase letters, with words separated by underscores _. Example: get_method_name

Kebab Case
All lowercase letters, with words separated by hyphens -. Example: get-method-name

Pascal Case (Upper Camel Case) and Camel Case (Lower Camel Case) are called “camel case” because the capital letters in each word look like a camel's humps.

Kebab case looks like words are skewered on a stick, while snake case resembles a snake slithering across the ground.

Naming Conventions in Swift

The following naming conventions are recommended in Swift:

That's an overview of Swift naming conventions.