How do golang function names reflect their parameters?

In the Go language, function names provide parameter type information by prefixing or suffixing parameter types to improve readability and consistency: Prefix parameter type: Add the parameter type prefix to the function name, such as ReadFile(filename string ). Suffix parameter type: Add the parameter type suffix to the function name, for example LenBytes(b []byte). These conventions help to clearly express a function's intent and parameter types, and enhance the clarity and maintainability of Go code.

How function names in Go reflect their parameters

In the Go language, function names can provide useful information about the types of their parameters. information. This convention helps improve code readability, maintainability, and consistency.

Prefix parameter types

The most common convention is to prefix the function name with the type of the parameter. For example:

func ReadFile(filename string) ([]byte, error)
func WriteFile(filename string, data []byte) error

This prefix makes the intent of the function clear at a glance.

Suffix parameter types

Another convention is to add the parameter type suffix to the function name. For example:

func LenBytes(b []byte) int
func EqualBytes(b1, b2 []byte) bool

This suffix provides a more concise way to indicate parameter types, especially when there are multiple parameters.

Practical Example

The following is a practical example using these conventions:

// 从文件中读取内容。
func (f *File) Read() ([]byte, error) {
    // ... 从文件中读取数据 ...
    return data, nil
}

// 向文件中写入内容。
func (f *File) Write(data []byte) error {
    // ... 向文件中写入数据 ...
    return nil
}

In this example, Read and Write Function names clearly indicate their purpose and parameter types.

Other conventions

In addition to prefix and suffix parameter types, the following conventions can also be used:

• Use verbs to express the function of the function ( For example Read and Write).
• Avoid using common names such as Get and Set.
• Keep function names concise and easy to understand.

Following these conventions can significantly improve the clarity and consistency of your Go code.

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