Go Concepts - Documentation
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Internal
Overview
Go generates in-line documentation for symbols in packages, via the go doc command.
Reading Documentation
To read the package summary:
go doc <package-name>
Example:
go doc fmt
To get the documentation for a package identifier (function name, type, etc):
go doc <package-name> <identifier>
Example:
go doc fmt Println
Package
go doc <package>
Function
go doc <package> <function-name>
Example:
go doc fmt Println