They were adopted from the. You can use them, or adapt them to your needs. The primary objectives are consistency and readability within your project, team, organization, or company source code.
In the following examples, any of the guidance pertaining to elements marked public is also applicable when working with protected and protected internal elements, all of which are intended to be visible to external callers. Use pascal casing "PascalCasing" when naming a class , record , or struct. When naming an interface , use pascal casing in addition to prefixing the name with an I. This clearly indicates to consumers that it's an interface.
When naming public members of types, such as fields, properties, events, methods, and local functions, use pascal casing. When writing positional records, use pascal casing for parameters as they're the public properties of the record. For more information on positional records, see Positional syntax for property definition. For more information on C naming conventions, see C Coding Style.
Examples that don't include using directives , use namespace qualifications. If you know that a namespace is imported by default in a project, you don't have to fully qualify the names from that namespace. Qualified names can be broken after a dot. You don't have to change the names of objects that were created by using the Visual Studio designer tools to make them fit other guidelines.
Good layout uses formatting to emphasize the structure of your code and to make the code easier to read. Microsoft examples and samples conform to the following conventions:. Use the default Code Editor settings smart indenting, four-character indents, tabs saved as spaces. Ensure all public members have the necessary XML comments providing appropriate descriptions about their behavior. The following sections describe practices that the C team follows to prepare code examples and samples.
Use string interpolation to concatenate short strings, as shown in the following code. To append strings in loops, especially when you're working with large amounts of text, use a StringBuilder object. Use implicit typing for local variables when the type of the variable is obvious from the right side of the assignment, or when the precise type is not important.
Don't use var when the type is not apparent from the right side of the assignment. Don't assume the type is clear from a method name. A variable type is considered clear if it's a new operator or an explicit cast. Don't rely on the variable name to specify the type of the variable. It might not be correct. In the following example, the variable name inputInt is misleading.
It's a string. Avoid the use of var in place of dynamic. Words like maximum , minimum , total will. Functions should be named using a verb, and a noun.
When functions perform some type of action on a resource, its name should reflect that. A good format to follow is actionResource. For example, getUser. Another common naming pattern I like is when iterating over items. When receiving the argument inside the function, use the singular version of the array name. Take these naming conventions with a pinch of salt. How you name your variables is less important than naming them consistently.
If you keep a consistent naming pattern, your codebase is going to be easier to reason about, and the next developer will be able to think less. If you have some naming conventions of your own, I would love to hear about them in the comments. Kotlin follows Java's conventions and they're summarized in its documentation. NET naming conventions are available online. Resources in Android projects are defined in XML but without namespaces. This makes it difficult to find stuff.
One suggested XML naming convention solves this problem. Following a common naming convention is beneficial. However, it may be okay to relax the rules in some cases.
When a name is highly localized, lacks business context or used within a few lines of code, it may be acceptable to use a short name fi rather than CustAcctFileInfo. When a project is written in multiple languages, it's not possible to have a single naming convention. For each language, adopt the naming convention prevalent in that language.
Another example is when you're using a third-party library. Follow their convention for consistency and readability. Ultimately, naming conventions should not be enforced blindly. We should be sensitive to the context of use. This is partly because IDE s come to the aid of developers. They can highlight the name in all places it occurs. The practice of prefixing member and static variables with m and s respectively is also not in favour since IDE s colour them differently.
Without being exhaustive here are some things to consider: Reveal intentions: fileName is better f ; maxPugs is better than pugs. Make distinctions: moneyInDollars is better than money. Easy to pronounce: timeStamp is better than ts. Verbs for functions: getName and isPosted are good; hasWeight or isMale when boolean values are returned; toDollars for conversions. One word, one concept: fetch , retrieve , get all imply the same thing: use one of them consistently.
Relate to business context: AddCustomer is better than IncrementCounter. Use shortforms judiciously: PremiumCust may be used over PremiumCustomer to emphasize "Premium"; but fn is not a good substitute for fileName. Plurals for containers: fruitNames is better than fruit for an array of fruit names.
Describe content rather than presentational aspects: in CSS , for example, main-section is better than middle-left-and-then-a-little-lower as identifier name. Milestones An early use of Camel Case, more formally called medial capitals , starts in chemistry. Swedish chemist Jacob Berzelius invents it to represent chemical formulae. The use of Snake Case can be traced to the late s. In the s, it's used in C language, while Pascal uses what is later called Pascal Case.
However, the name Snake Case itself is coined in the early s. The s is when Camel Case started becoming common in the world of computer programming.
However, the name itself is coined years later in and is attributed to Newton Love. In the s, Charles Simonyi, a Hungarian working at Microsoft, invents the notation of using lowercase prefixes to names to indicate what the name referred to. Thus is born Apps Hungarian Notation. Unfortunately, some mistake Simonyi's idea and use prefixes to indicate data types.
This is born Systems Hungarian. While Apps Hungarian is useful, Systems Hungarian is not, particularly in type safe languages. When Microsoft start working on. NET in the late s, they recommend not using Hungarian notation.
R language doesn't officially specify a naming convention. Therefore multiple conventions exist.
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