Definition of Camelcase

CamelCase is a naming convention in which compound words or phrases are combined without using spaces or punctuation, and each word’s first letter is capitalized. It is commonly used in programming and for naming variables, functions, or classes. The name comes from the appearance of its humps, resembling a camel’s back.


The phonetic representation of the keyword “Camelcase” in the International Phonetic Alphabet (IPA) is:/ˈkæməlkeɪs/

Key Takeaways

  1. CamelCase is a naming convention for variables, functions, and other identifiers that consists of multiple words, where the first letter of each word is capitalized, except for the first word.
  2. CamelCase improves code readability by making it easier to distinguish individual words within an identifier and is often used in programming languages like Java, JavaScript, and C#.
  3. There are two main variations of CamelCase: UpperCamelCase (or PascalCase), which capitalizes the first letter of every word, and lowerCamelCase, which leaves the first letter of the first word lowercase.

Importance of Camelcase

CamelCase is an important technology term primarily because it enhances the readability and organization of code in programming, making it more efficient for developers.

It is a coding convention where compound words or phrases are written without spaces, while each distinct word’s initial letter is capitalized, making it resemble the humps of a camel.

By employing CamelCase, programmers can quickly distinguish variables, functions, and classes within code, ensuring that it remains clean, well-structured, and easy to understand.

This practice not only facilitates better collaboration among developers, but also reduces the likelihood of errors and simplifies debugging, thereby positively impacting overall software development and maintenance.


CamelCase is a widely used convention in the world of computer programming and technology that enhances readability and maintainability of code and identifiers. It serves as a crucial tool when developers write computer programs, create file or folder names, define variable identifiers or compose any kind of code-based structure.

The purpose of CamelCase is to make it easier for programmers to quickly understand and distinguish separate words or elements without disrupting the flow by using spacing or special characters. This is particularly important in programming languages which are often case-sensitive and are strict about syntax, making it easier to spot and prevent errors through a well-structured and visually clear code.

The technique behind CamelCase involves concatenating words by capitalizing the first letter of each word and using lowercase for the remaining ones, without spaces or punctuation. For instance, a phrase like “customer information form” would become “customerInformationForm” in camelCase.

By efficiently combining multiple words, CamelCase adeptly serves its purpose of effectively communicating the intent or functionality of a program element while simultaneously adhering to the syntactical requirements of the specific programming language being used. This not only promotes clean code writing habits but also helps establish a consistent and coherent style throughout a project, ultimately boosting overall efficiency and productivity for developers.

Examples of Camelcase

CamelCase, also known as mixed case or medial capitals, is a way of writing compound words wherein each word in the middle of the phrase begins with a capital letter without spaces or punctuation. Here are three real-world examples of CamelCase being used in technology:

In programming language: CamelCase is frequently used in computer programming to write code more efficiently. Many programming languages use CamelCase notation for naming variables, functions, and classes. For example, in JavaScript and Java, one might name a function “calculateTotalPrice” or a variable “customerFirstName” using CamelCase.

In social media hashtags: Social media users often employ CamelCase when creating hashtags for increased legibility. For example, instead of writing #savetheearth, users may write #SaveTheEarth. This format makes the distinct words in the hashtag easier to read and understand.

In product and company names: Many well-known technology companies and their products use CamelCase in their naming convention. Examples include eBay, an online marketplace; PowerPoint, a Microsoft Office software product; and iPhone, a line of smartphones from Apple.

FAQ: Camelcase

What is camelcase?

Camelcase is a naming convention in programming and writing where a compound word or phrase is written as one word, with each of the words’ first letters capitalized except for the very first letter. Camelcase makes it easy to distinguish separate words in a single string while avoiding spaces and special characters.

Why is camelcase used in programming?

Camelcase is often used in programming because it improves code readability by making it easy to identify different words within a single identifier or variable name. It prevents the use of whitespace and special characters within names, which could cause syntax errors or lead to conflicts with reserved symbols in some programming languages.

What are some examples of camelcase?

Some examples of camelcase include:

  • userName
  • productID
  • getPhoneNumber
  • camelCaseExample

Is camelcase the same as PascalCase?

No, while both camelcase and PascalCase are naming conventions that capitalize the first letter of each word in a compound word or phrase, they differ in that camelcase has the first letter in lowercase, and PascalCase has it in uppercase. For example:

  • camelcase: numberOfItems
  • PascalCase: NumberOfItems

Which programming languages commonly use camelcase?

Many popular programming languages, such as JavaScript, Java, Python, and PHP, use camelcase for naming variables, functions, and objects. Camelcase is used because it adheres to the naming conventions of these languages and helps to maintain a consistent code style.

Related Technology Terms

  • PascalCase
  • snake_case
  • kebab-case
  • Identifier naming convention
  • Capitalization style

Sources for More Information


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