I constantly forget which is Camel case and which is Pascal case. So I thought that maybe a little history will help. Where do the names of these conventions come from? Is there some history behind their names?
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6Just remember the phrase - A sleeping camel will always have his head lower. Hence the first case is lower case in camel case. This is the only difference between the two naming conventions.– RBTCommented May 20, 2018 at 23:14
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9Something I heard that I like is: Pascal is a proper noun, so the first letter is a capital. However, camel is not, it's just a noun, so the first letter does not need to be a capital.– JamieGLCommented Jul 17, 2018 at 21:40
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1If you're interested in naming conventions and history, check out 'Hungarian Notation' just for fun.– RobSCommented Feb 19, 2019 at 4:59
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I always thought Pascal case was named after the programming language Turbo Pascal, my first true love! Nobody mentioned that? Pascal was case-insensitive, but PascalCase was the convention.– AaronCommented Jan 23, 2022 at 13:41
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Remember that CamelCase sucks as a term because it is ambiguous as the first letter can be upper or lower.– nullCommented Dec 18, 2023 at 20:39
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6 Answers
To remember camel case you have to think about the shape of the capital letters. They are like the humps of a camel as you can see in this image.
Pascal Casing - capitalizes each word:
ThisShouldBePascalCase
Camel Casing - is similiar to pascal case but the first word is not capitalized:
thisShouldBeCamelCase
You can read some history here
UPDATE: Change the camel case image after reading the comments.
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10I don't think the "CamelCase" picture is helpful because it uses Pascal Casing—the first letter is capitalized. Commented Jan 11, 2019 at 18:15
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1This one is better: en.wikipedia.org/wiki/Camel_case#/media/File:CamelCase.png Commented Apr 23, 2019 at 13:17
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While I'd known of this method, I could never remember if the camel's head counted as a capital letter. 🤦🏼♀️ Commented Aug 3, 2021 at 15:36
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@Ema.jar please note that Camel Case may have first letter lower or upper. Please correct your statement "but the first word is not caplitalized[sic]". Please see en.wikipedia.org/wiki/Camel_case– nullCommented Dec 18, 2023 at 20:42
Pascal is a persons name... a persons name always starts capitalized, whereas 'camel' is just a noun and thus, unless the start of a sentence, is always lowercased.
answered Jul 18, 2018 at 8:45
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9@Nick This answer is different from the accepted answer, because it provides a completely different mnemonic device to remember the difference between PascalCase and camelCase. Commented Oct 3, 2019 at 18:37
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@CameronBieganek, SO is for technical information, not mnemonics.– NickCommented Oct 3, 2019 at 19:39
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7@Nick OP was looking for help remembering which was which, and this answer provides that help in the form of a mnemonic. Judging by the number of upvotes for this answer, I'm guessing other people were also looking for a way to remember which is which. Commented Oct 3, 2019 at 19:48
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3Also SO is a resource for learning, and it's sometimes helpful to have many point of views and/or additional information. I believe that's one purpose of being able to add many answers to a single question.– ljlebCommented Feb 16, 2021 at 23:24
camel case - first letter of first word lower case, and first letter of every word, after that should be Upper Case.
Examples:
- camelCase
- camelCaseLetter
pascal case - first letter of every word should be upper case.
Examples:
- PascalCase
- PascalCaseLetter
Pascal Case: in Pascal case every word of each letter should be capital like MossawarHussain
Camel case: As the name show it follow the camel structure of word like mossawarHussain
Difference:
Pascal is a subset of Camel case. The first letter of Pascal is capital and first letter of the camel is small that is the major difference between these two cases.
answered Aug 10, 2018 at 6:18
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So if Pascal case is a subset of Camel case, then Pascal case is also Camel case, right? For ex,
VariableNameis written in Pascal case, but it's also written in Camel case. Am I right? Commented Dec 5, 2019 at 13:09 -
I believe what the author meant was that, with a
camelCasesymbol, if you remove the initial lower case letters, you end up with aPascalCaseword (just like if you take the camel case "someVeryLongSymbol" and remove the "some" in the front, you get the pascal case "VeryLongSymbol"). In reality,camelCaseis notPascalCase, andPascalCaseis notcamelCase.– ljlebCommented Feb 16, 2021 at 23:28 -
For set PascalCase to be a subset (or proper subset ⊆) of set camelCase, (PascalCase ⊂ camelCase) it means that EVERY member of PascalCase is also a member of camelCase - but that intersection is the empty set (∅). It's also false that camelCase is a subset (⊂) of PascalCase because the intersection of those sets is also the empty set (∅). Commented Jul 28, 2022 at 17:24
In camel case first letter of first word lower case, and first letter of every word, after that should be Upper Case.
Ex: userName userFullName
In pascal case first letter of every word should be upper case.
Ex: UserName UserFullName
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just wanted to share this incase anyone finds this comment, but username is username unless it's a user's name which is userName. so point is, username is the exception.– TumiCommented Jun 28 at 12:21
I could be wrong. PEP 8, for those writing in python, suggests otherwise.
i.e. in python => CamelCase
https://www.python.org/dev/peps/pep-0008/
answered Oct 9, 2020 at 9:52
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1That python PEP reference which shows PascalCase and calls it "camelCase", and shows camelCase and calls it "mixedCase" is an example of don't believe everything you read on the internet - not all sources are authoritative, even the ones that purport to be. Commented Jul 28, 2022 at 17:16
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