Gophercises - 9 - Deck of Cards

Problem

• https://github.com/gophercises/deck
• https://gophercises.com/exercises/deck

Solution

• deck/main.go: Package.

Lessons Learned

Stringer package

Stringer package can generate String() for types. In this case, we can use it to make one for Suit and Value types.

• go get golang.org/x/tools/cmd/stringer
• go doc with example: https://godoc.org/golang.org/x/tools/cmd/stringer

1. Add the following on top of the file with the types (in this case deck/card.go).

   //go:generate stringer -type=Suit,Value
   

2. Run go generate inside the deck directory.
3. It will create a file named suit_string.go.
4. Now we can call Suit.String() and it will return a string.