• go build: compiles a bung of go source code files
• go run: compiles and executes one or two files
• go fmt: formats all the code in each file in the current directory
• go install: compiles and installs a package
• go get: downloads the raw source code of someone else's package
• go test: runs any tests associated with the current project

package main defines a package that can be compiled and the executed. Must have a func called 'main'

package calculator and package uploader defines a package that can be used as a dependency (helper code)

Give my package all the functionally inside "fmt"

bool: true - false
string: "Hi"
int: 0 - 999
float64: 10.0001

var card string = "Ace of Spades"
card := "Ace of Spades"

cards := []string{"Ace of Diamonds", "Other string"}

	for i, card := range cards {
		fmt.Println(i, card)
	}

type deck []string

cards := deck{"Ace of Diamonds", newCard()}

"Hi there!" -> String

[72 105 32 116 104 101 114 101 33] -> Byte slice

data []byte

asciitable.com

[]byte("Hi there!")

Example:

greeting :=  "Hi!"

fm.Println([]byte(greeting))

func (d deck) print() {
	for i, card := range d {
		fmt.Println(i, card)
	}
}

Any variable of type deck now gets access to the print method. For convention, we call the iterable with the first char of the name of the type.