How do you name your variable?

Question

Which naming convention do you prefer most?

1. UPPERCASE
2. lowercase
3. camelCase
4. under_score
5. SentenceCase
6. mIxeDcAsE

Answer 1

SentenceCase for classes,
camelCase for variables,
UPPERCASE for constants,
lowercase for packages.

Answer 2

camelCase if I need to declare alot of variables, lowercase if it is just a small code and mIxeDcAsE if I just woke up early in the morning :F

Answer 3

@Dayve You rebel! 😂

Answer 4

What if we mix up every convention?
mIxeDcAsE....as stated above!😯😯

Answer 5

As per Google C++ Style Guide
(with a few edits here and there)

Naming

The most important consistency rules are those that govern naming. 

Type Names

Type names start with a capital letter and have a capital letter for each new word, with no underscores.

class UrlTableTester { ... struct

Variable Names

The names of variables (including function parameters) and data members are all lowercase, with underscores between words. Data members of classes (but not structs) additionally have trailing underscores.

a_local_variable
a_struct_data_member
a_class_data_member_

Common Variable names

string table_name; // OK - uses underscore.
string tablename; // OK - all lowercase.
string tableName; // Bad - mixed case.

Constant Names

Variables declared constexpr or const, and whose value is fixed for the duration of the program, are named with a leading "k" followed by mixed case.

const int kDaysInAWeek = 7;

Function Names

Regular functions have mixed case; accessors and mutators may be named like variables.

Ordinarily, functions should start with a capital letter and have a capital letter for each new word (a.k.a. "Camel Case" or "Pascal case"). Such names should not have underscores. Prefer to capitalize acronyms as single words (i.e. StartRpc(), not StartRPC()).

AddTableEntry()
DeleteUrl()
OpenFileOrDie()

Learn more: https://google.github.io/styleguide/cppguide.html#General_Naming_Rules

Answer 6

lowercase="the simplest"

Answer 7

I use semantic classnames of camelCase convention

Answer 8

I prefer
3. camelCase
and
4. under_score

Answer 9

I use all except lowercase and SentenceCase.

Answer 10

I name the variables like this - camel_Case which involves everything one uppercase, lowercases, and an underscore

But it's up to the programmer how he names the vars according to his convenience

Answer 11

1 Letter at a time

Answer 12

It's always better to follow the standards

UPPERCASE --> CONSTANTS
lowercase --> packages or libraries
camelCase --> functions or methods
SentenceCase --> Classes
under_score --> variables or pointers (very rare)
miXeDcaSe --> I never tried this 😉

Answer 13

Thx to every single one of you for liking my answer. You gave the 'popular answer' badge to me 😘
Special thx to Tamra who was the hundredth upvoter!

Answer 14

lowercase and UPPERCASE

Answer 15

I usually name variables in lowercase until I name it using two words. When I use two words as variable's name, I use camelCase as it is easy to read for everyone. If you want to write variable name in lower case using two words, use an underscore sign (_).

Answer 16

sentenceCase.

Answer 17

camelCase is easier to write and read.

Answer 18

camelCase and lowercase

Answer 19

I usually use SentenceCase

Answer 20

simply its better, I think, to name your variable in lower case and constants in upper. it will create a simple distinction and will be easy to maintain the code.