kjk

// :collection Essential Go
package main

import (
    "encoding/gob"
    "os"
    "log"
    "fmt"
)

kjk

// :collection Essential Go
package main

import (
    "bytes"
	"encoding/csv"
	"fmt"
	"io"
	"log"
)

kjk

// :collection Essential Go
package main

import (
	"encoding/csv"
	"fmt"
	"io/ioutil"
	"log"
	"os"
)

kjk

// :collection Essential Go
package main

import "fmt"

func main() {
	// :show start
	for i := 0; i < 5; i += 2 {
		fmt.Printf("i: %d\n", i)
	}

kjk

// :collection Essential Go
package main

import "fmt"

func main() {
	// :show start
	i := 0
	for ; i < 5; i += 2 {
		fmt.Printf("i: %d\n", i)

kjk

// :collection Essential Go
package main

import "fmt"

func main() {
	// :show start
	i := 0
	for ; ; i += 2 {
		fmt.Printf("i: %d\n", i)

kjk

// :collection Essential Go
package main

import "fmt"

func main() {
	// :show start
	for i := 0; i < 5; {
		fmt.Printf("i: %d\n", i)
		i += 2

kjk

// :collection Essential Go
package main

import "fmt"

func main() {
	// :show start
	i := 0
	for {
		fmt.Printf("i: %d\n", i)

kjk

// :collection Essential Go
package main

import "fmt"

func main() {
	// :show start
	a := []int{1, 3, 5}
	for idx, value := range a {
		fmt.Printf("idx: %d, value: %d\n", idx, value)

kjk

// collection: Essential Go
package main

import (
	"bytes"
	"encoding/hex"
	"fmt"
	"log"
)