fmtFprintlnosStdout
fmt.Fprintln(os.Stdout, ...) is a common pattern in the Go standard library used to write formatted output to the process’s standard output. It combines the formatting capabilities of the fmt package with the io.Writer interface provided by os.Stdout.
- fmt.Fprintln is a function in the fmt package that formats its operands using the default formats
- os.Stdout is an io.Writer representing the standard output of the current process. When used as the
- The typical signature is: func Fprintln(w io.Writer, a ...interface{}) (n int, err error).
- It formats each argument using the standard formatting rules (similar to fmt.Print), inserts spaces between arguments,
- It returns the number of bytes written and an error if one occurred.
- The pattern fmt.Fprintln(os.Stdout, ...) is convenient for console logging, debugging, or simple user-facing messages in CLI programs.
- Because Fprintln writes to any io.Writer, the same call can be redirected to files, buffers, or
- For more complex formatting without forcing a newline, fmt.Fprint or fmt.Fprintf can be used with a
- fmt.Fprintln(os.Stdout, "Server started on", 8080)