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Should I abbreviate variable names?
Don’t shorten names unless you really need to. It really only makes sense if the variable name is already super long. For example, con is a popular abbreviation for a network connection, but it could also mean a drawback (pro vs con), or the end of an array.
How should variables be named?
Rules of naming variables
- Name your variables based on the terms of the subject area, so that the variable name clearly describes its purpose.
- Create variable names by deleting spaces that separate the words.
- Do not begin variable names with an underscore.
- Do not use variable names that consist of a single character.
Should variable names be long?
Having really long variable names will muddle up your code’s readability, so you want to avoid those. But on the other end of the spectrum, you want to avoid ultra-short names or acronyms like “n” or “ne.” Short, cryptic names like these will cause someone trying to read your code to tear their hair out.
Should variables names be capitalized?
Do not capitalize effects or variables unless they appear with multiplication signs. Many authors confuse these terms (factor, variable, and effect), and if you are uncertain about whether the author used them correctly, it is best to query.
How long should variable names be Python?
By convention, variable names start with a lower case character. The easiest way to make sure you are not adding lines longer than 80 characters wide is to always work inside a window that is exactly 80 characters wide. If your line starts wrapping around to the next line, its too long.
Are long variable names bad?
As per standards, longer descriptive names are advised to make it more readable and maintainable on longer term. If you use very short naming e.g. a variable as a , you will forget yourself, what that variable is meant for after sometime. This becomes more problematic in bigger programs.
Which is a valid variable name?
Valid Names A valid variable name starts with a letter, followed by letters, digits, or underscores. MATLAB® is case sensitive, so A and a are not the same variable. The maximum length of a variable name is the value that the namelengthmax command returns.
What is a variable and how are they named?
A variable is a symbolic name for (or reference to) information. The variable’s name represents what information the variable contains. They are called variables because the represented information can change but the operations on the variable remain the same.
Is long variable names bad?
Why are some variables capitalized?
Upper case is used to help readability by separating the words within a name. Code with single-word local variable names (which should be common) are fast and easy to type.
Should variables be capitalized in C++?
Class member variable names Names of variables which are members of C++ classes follow the same formatting rules as names of classes, except variable names should begin with a lower case letter.
How long should method names be?
Use short enough and long enough variable names in each scope of code. Generally length may be 1 char for loop counters, 1 word for condition/loop variables, 1-2 words for methods, 2-3 words for classes, 3-4 words for globals.
How long should function names be?
General rule is that the function name provides a very short description of what it’s doing. Most of such descriptions should easily fit within 32 characters. (Use CamelCase to separate words.) Since most IDE’s now provide Code Completion, making errors with function names does tend to be rare.
Which of the following is not a correct variable name?
Answer. Explanation: Which of the following is not a valid variable name declaration? Explanation: Variable name cannot start with a digit.
How many size characters are variable names?
Variable names are up to 64 characters long and can only contain letters, digits and nonpunctuation characters (except that a period (.) is allowed.
Which of the following is correct variable name?
Which of the following is a valid variable? Explanation: Variable name should not be keyword, cannot begin with digit and should not contain special symbol. Hence D is the correct identifier or variable.
Which variable type should be declared for capitalize?
The String type is capitalized because it is a class, like Object , not a primitive type like boolean or int (the other types you probably ran across).
What does a Capital variable mean?
Variable capital is “variable” because its value changes (varies) within the production process, as the worker can produce value over and above what he needs to live (the “necessary labor time”), which is paid in wages. As the worker produces more than he is paid in wages, he thus creates new value.
Why do we abbreviate variables in Python?
The reason we abbreviate variables is to stop typing large variables, but at the same hand the abbreviated variable should be explicit enough that you can understand what it hold rather than going back to where it was declared or instantiated first. So for example:
Do you abbreviate when writing variable names?
I do still try to keep my lines under 80 chars. I’m not sure if that makes sense these days, but it is an old habit. So I will abbreviate if a variable name is otherwise going to be very long. But before I do that I will try to find a more succinct name that is equally clear-all else equal shorter is better (speaking of the expanded form.)
What are the rules for variable names?
The following rules apply to variable names: Each variable name must be unique; duplication is not allowed. Variable names can be up to 64 bytes long, and the first character must be a letter or one of the characters @, #, or $. Subsequent characters can be any combination of letters, numbers, nonpunctuation characters, and a period (.).
What is the maximum length of a variable name?
Variable names can be up to 64 bytes long, and the first character must be a letter or one of the characters @, #, or $. Subsequent characters can be any combination of letters, numbers, nonpunctuation characters, and a period (.).