patpitchaya - Fotolia
Variable naming conventions are important. Any time a developer learns a new language or low-code tool, one of the first topics they seek clarification on is the standardized naming conventions. Pascal case and camel case are two of the most often referenced.
Camel case and Pascal case are similar. Both demand variables made from compound words and have the first letter of each appended word written with an uppercase letter. The difference is that Pascal case requires the first letter to be uppercase as well, while camel case does not.
Pascal case examples
The below examples follow both camel case and Pascal case naming conventions:
Pascal case is always consistent with camel case rules. However, when a variable starts with a lowercase letter, camel case is not consistent with Pascal case.
Camel case examples
The following camel case examples do not follow the Pascal case convention:
The term "lower camel case" is often used when a variable starts with a lowercase letter (jenkinsServer), while "upper camel case" is often used to refer to variables that comply to Pascal case rules (JenkinsServer).
Camel case vs. pascal case usage
Most languages and development frameworks distinguish between the types of components that should be written in a given naming format. For example in Java, classes, interfaces and enums should all be written in Pascal case. Local variables declared within the body of a Java program should be written in lower camel case.
Variable naming convention alternatives
Many programming languages, including C++ and Java, use snake case for constants and static variables. The use of kebab case tends to be discouraged, as the dash can be misread as a subtraction operation.
In most development environments, the use of Pascal case versus camel case is a convention, not a necessity. Code will still compile and run, regardless of which naming convention is used. The proper use of Pascal case and camel case is intended to make code more readable and maintainable. It is not a compiler requirement.
Dig Deeper on Software programming languages
Related Q&A from Cameron McKenzie
Understand the difference between checked and unchecked exceptions in Java, and learn how to handle these problem conditions properly and gracefully. Continue Reading
Both Git fork and clone create copies of a repository, but they offer drastically different levels of access, isolation and control over the target ... Continue Reading
What is the difference between a variable written in kebab case vs. camel case? Here we'll show you how these naming conventions differ and when to ... Continue Reading