Exercises

Powerful Command-Line Applications in Go — by Ricardo Gerardi (15 / 127)

👈 Compiling Your Tool for Dif ferent Platforms | TOC | Wrapping Up 👉

You can improve your understanding of the concepts discussed here by doing these exercises:

• Add another command-line flag, -b, to count the number of bytes in addition to words and lines.
• Then, update the count function to accept another parameter, countBytes. When this input parameter is set to true, the function should count bytes. (Hint: check all the methods available for the type bufio.Scanner in the Go documentation.[12])
• Write tests to ensure the new feature works as intended.

👈 Compiling Your Tool for Dif ferent Platforms | TOC | Wrapping Up 👉

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