What are the best practices for golang function naming?

In Go, best practices for function naming include: keep it simple, start with a verb, use lowercase letters, use camelCase, avoid prefixes, consider context, and avoid abbreviations. By following these guidelines, you can write Go function names that are clear, readable, and easy to maintain.

Best practices for naming Go functions

In Go, function names play a crucial role, not only Clearly communicating what a function does also improves code readability and maintainability. This article will introduce the best practices for Go function naming and provide practical cases for illustration.

1. Keep it simple

Function names should be as concise and clear as possible. Avoid using lengthy or difficult-to-understand names.

Practical case:

A function used to obtain the user name:

func getUserName() string

2. Use verbs

The function name should start with a verb, describing the operation performed by the function.

Practical example:

A function for verifying emails:

func validateEmail(email string) bool

3. Use lowercase letters

Function names in Go should be all lowercase.

Practical case:

A function used to calculate the area of ​​a circle:

const Pi = 3.14

func calculateCircleArea(radius float64) float64 {
    return Pi * radius * radius
}

4. Use camel case nomenclature

For multi-word function names, camel case naming should be used, such as removeDuplicateItems().

Practical case:

A function for removing duplicates from an array:

func removeDuplicateItems(array []int) []int

5. Avoid using prefixes

Do not use prefixes (such as get, set) to name functions. These prefixes can explicitly describe the function's behavior, but can make the function name verbose.

Practical case:

One for setting the username:

func setUserName(username string)

6. Consider the context

The function name should be associated with the context characters of the package and module in which the function is located.

Practical case:

A function used to create files in the file system package:

package files

func createFile(name string) error

7. Avoid abbreviations

Avoid using abbreviations as they may be difficult to understand.

Practical case:

Use the wrong value as the function name ではなく：

func err() error

Instead ：

func getError() error

By following these best practices, you can create concise, understandable, and maintainable Go function names.

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