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How to view Golang function documentation in the IDE?

王林
王林Original
2024-04-18 15:06:02785browse

View Go function documentation using the IDE: Hover the cursor over the function name. Press the hotkey (GoLand: Ctrl Q; VSCode: After installing the Go Extension Pack, F1 and select "Go: Show Documentation").

如何在 IDE 中查看 Golang 函数文档?

View Go function documentation in the IDE

In Go development, understanding function documentation is essential for writing efficient and easy-to-maintain code. Crucial. Modern IDEs provide convenient functionality for viewing function documentation.

Using GoLand

GoLand is a popular IDE designed specifically for Go development. To view the function documentation:

  1. Hover the cursor over the function name.
  2. Press Ctrl Q (Cmd Q on MacOS).

Using VSCode

VSCode can also view function documentation through extensions, for example:

  1. Install the Go Extension Pack extension.
  2. Hover the cursor over the function name.
  3. Press F1 and select "Go: Show Documentation".

Practical case

Let us take the fmt.Printf function as an example:

In GoLand, hanging Pausing on the Printf function and pressing Ctrl Q displays the function signature, return type, and a docstring containing the function description.

func Printf(format string, a ...interface{}) (n int, err error)

In VSCode, after installing the Go Extension Pack extension, hover over the Printf function and press F1 A pop-up window will appear containing the function documentation :

Printf formats according to a format specifier and writes to w. It returns the number of bytes written and an error, if any.
...
The format string is an extended form of printf formatting.
...

Understanding function documentation is important to understand correct function usage and input/output types. By using the IDE's documentation viewing capabilities, developers can save time and write more reliable code.

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