Learning Functional Programming in Go

An alternative workflow option

Suppose we have a text file that looks like this:

4-purely-functional/ch10-monads/02_error_checker/alphabet.txtABCDEFGHIJKLMNOP

This code will read three sets of two characters:

func main() {    file, err := os.Open("alphabet.txt")    if err != nil {        log.Fatal(err)    }    byteSlice := make([]byte, 2)    numBytesRead, err := io.ReadFull(file, byteSlice)    if err != nil {        log.Fatal(err)    }    logInfo(numBytesRead, byteSlice)    byteSlice = make([]byte, 2)    numBytesRead, err = io.ReadFull(file, byteSlice)    if err != nil {        log.Fatal(err)    }    logInfo(numBytesRead, byteSlice)    byteSlice = make([]byte, 2)    numBytesRead, err = io.ReadFull(file, byteSlice)    if err != nil {        log.Fatal(err)    }    logInfo(numBytesRead, byteSlice)

We can improve our code ...