go

main.go

// map == hash

val := make(map[string]int)


defer two()

// * - указатель - адрес, x изменяется
pointer (&x) - передается
func pointer (x *int) { *x = 2 }

структуры

type Cats struct {
  name string
}

func (cat *Cats) test() float64 {
  return 1
}

bob := Cats { "zzz" }
bob.test()

for x := range cannel {
  x
}

if name, ok := elements["Un"]; ok {
  fmt.Println(name, ok)
}

panic
recover




go get -u all
go get ./...



bee pack


nohup ./beepkg &

packages.go

goconvey




"reflect"

fmt.Println(reflect.TypeOf(ID))

test.go

// MOCK
var fs fileSystem = osFS{}

type fileSystem interface {
    Open(name string) (file, error)
    Stat(name string) (os.FileInfo, error)
}

type file interface {
    io.Closer
    io.Reader
    io.ReaderAt
    io.Seeker
    Stat() (os.FileInfo, error)
}

// osFS implements fileSystem using the local disk.
type osFS struct{}

func (osFS) Open(name string) (file, error)        { return os.Open(name) }
func (osFS) Stat(name string) (os.FileInfo, error) { return os.Stat(name) }





"github.com/mailgun/godebug"

godebug test

go test -v ./...
go test -run=TestQueryGraphql

http://localhost:8000/v1?query={products{id,name}}


for key, value := range res.DAta {
		fmt.Println(key, value)
}