Notes GO

Repository for record my learning in GO.

Courses and Videos

• Alura - Go: a linguagem do Google
• YouTube Channel HunCoding

Notes

• := : Declaration and attribution
• & : The address of
• Function to return two values

func getTwoNumbers() (int, int) {
 number1 := 1
 number2 := 2
 return number1, number2
}

number1, number2 := getTwoNumbers()
_, number2 := getTwoNumbers() // Ignore first return

• while not exist, but you can use for

for {

}

• Create a slice (array abstract and dynamic)

func showNames(){
 names := []string {"Jean", "Alice", "Kal-El"}
 fmt.Println(names)
}

• Convert types using strconv

Project Structure

• /pkg: This is where to save all installed dependencies in your projects
• /src: This is where all the code is saved.
  • Example: /github.com/jjeanjacques10/crud-golang
• /bin: This is where you save the binaries that the "go install" command uses to compile

GOPATH vs GOROOT

• $GOROOT is an environment variable that specifies the location of the Go runtime. It is typically set when Go is installed and should not need to be modified.
• $GOPATH, on the other hand, is an environment variable that specifies the location of your Go workspace, where your Go code and dependencies are stored.

Documentation

• https://pkg.go.dev/os
• https://pkg.go.dev/time