How to write function documentation that conforms to Golang documentation writing standards?

Follow the following steps to write a function document that conforms to Golang document writing specifications: 1. Function signature (including function name, parameters and return value type); 2. Function description (briefly describing function functions); 3. Parameters (specified name, type and description); 4. Return value (specify type and description); 5. Collapse and expansion (use annotations to control the expansion and collapse of the description).

How to write function documentation that conforms to Golang documentation writing specifications?

Golang’s function documentation follows specific specifications to ensure consistency and readability. Here is a step-by-step guide to writing function documentation that conforms to these specifications:

1. Function signature

Include the function signature before the code block, including the function name, parameter list and return value type.

func Sum(a, b int) int

2. Function description

Below the function signature, describe the function of the function in a short sentence.

// Sum returns the sum of two integers.
func Sum(a, b int) int

3. Parameters

For each parameter, specify its name, type, and optional description.

// a is the first number to be summed.
// b is the second number to be summed.
func Sum(a, b int) int

4. Return value

Specify the type and optional description of the value returned by the function.

// Sum returns the sum of two integers.
// The result is an integer.
func Sum(a, b int) int

5. Collapse and expand

By default, the function document is expanded, showing the full description of the parameters and return values. These descriptions can be collapsed using <!-- --> comments to make it easier to read the function signature:

// Sum returns the sum of two integers.

// <!-- -->
// a is the first number to be summed.
// b is the second number to be summed.

Practical example

The following is an example of a function document that conforms to Golang documentation writing specifications:

// Length returns the length of the string.
// The length is an integer representing the number of UTF-8 code points in the string.
func Length(s string) int

Tips

• Use appropriate comment formats in code blocks Add comments to provide more information.
• Always follow the latest Golang documentation writing standards.

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