Question 1

What is the difference between camelCase and PascalCase?

Accepted Answer

Both join words with no separators and capitalize each word's first letter, but camelCase leaves the very first letter lowercase (myVariableName) while PascalCase capitalizes it (MyVariableName). camelCase is conventional for variables and functions in JavaScript and Java; PascalCase is used for classes, types, and React components.

Question 2

How does the converter split my input into words?

Accepted Answer

It detects word boundaries from spaces, underscores, hyphens, and dots, and also from case changes — so camelCase and PascalCase inputs are split correctly (e.g. myVariableName becomes my, variable, name). Consecutive capitals like HTTPServer are handled so it splits into HTTP and Server. All words are lowercased before being reassembled into the target case.

Question 3

What is CONSTANT_CASE used for?

Accepted Answer

CONSTANT_CASE (also called SCREAMING_SNAKE_CASE) writes all letters uppercase with underscores between words, such as MAX_RETRY_COUNT. It is the convention for constants and, most commonly, environment variables (DATABASE_URL, API_KEY) across virtually every language and shell.

Case Converter

Where Each Case Is Used

Frequently Asked Questions