thoughts on code examples [err]

[TotallyNotAHaxxer]

was looking throuh some of the code files and i noticed you use

	if err != nil {
		log.Fatalln(err)
	}

in most samples, my thought on this is why not add modules? or a function in another module file to handel errors where the function looks similar to this

func CheckErr(err error, format string) {
                if err != nil {
                      if format == "log" {log.fatalln(err)}
                 }
}

and just advance the code from there, idk if thats just a me thing but i feel like it would be great to do in a sense of code optimization