Snake case

Snake case (or snake_case) is the process of writing compound words so that the words are separated with an underscore symbol (_) instead of a space. The first letter is usually changed to lowercase. Some examples of Snake case would be "foo_bar" or "hello_world". It is commonly used in computer code. At least one study found that readers can recognize snake case faster than CamelCase.^[1]

Variants

If the first letter of each word is uppercase, this is known as Train-Case.^[2]^[3]

Programming languages that use snake case

Snake Case Media

Piece of code from a module of the Linux kernel, which uses snake case for identifiers

Related pages

CamelCase

References

↑ An Eye Tracking Study on camelCase and under_score Identifier Styles.
↑ StackOverflow - What's the name for snake_case with dashes?.
↑ Camel_SNAKE-kebab.
↑ Michael A. Covington. Coding Guidelines for Prolog (v.3) (2009). p. 14.
↑ Rao, Navule Pavan Kumar. Getting Started with V Programming (in en) (December 10, 2021). p. 29. ISBN 978-1839213434. OCLC 1290492862.

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[1] An Eye Tracking Study on camelCase and under_score Identifier Styles.

[2] StackOverflow - What's the name for snake_case with dashes?.

[3] Camel_SNAKE-kebab.

[4] Michael A. Covington. Coding Guidelines for Prolog (v.3) (2009). p. 14.

[5] Rao, Navule Pavan Kumar. Getting Started with V Programming (in en) (December 10, 2021). p. 29. ISBN 978-1839213434. OCLC 1290492862.

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