You should use reflect.DeepEqual() DeepEqual is a recursive relaxation of Go’s == operator. DeepEqual reports whether x and y are “deeply equal,” defined as follows. Two values of identical type are deeply equal if one of the following cases applies. Values of distinct types are never deeply equal. Array values are deeply equal when their … Read more
In Go, := is for declaration + assignment, whereas = is for assignment only. For example, var foo int = 10 is the same as foo := 10.
GOPATH is discussed in the cmd/go documentation: The GOPATH environment variable lists places to look for Go code. On Unix, the value is a colon-separated string. On Windows, the value is a semicolon-separated string. On Plan 9, the value is a list. GOPATH must be set to get, build and install packages outside the standard … Read more
int32 and time.Duration are different types. You need to convert the int32 to a time.Duration: time.Sleep(time.Duration(rand.Int31n(1000)) * time.Millisecond)
Yes assuming you have this: var WhatIsThe = AnswerToLife() func AnswerToLife() int { // 1 return 42 } func init() { // 2 WhatIsThe = 0 } func main() { // 3 if WhatIsThe == 0 { fmt.Println(“It’s all a lie.”) } } AnswerToLife() is guaranteed to run before init() is called, and init() is … Read more
This is called the ‘receiver’. In the first case (h handler) it is a value type, in the second (s *GracefulServer) it is a pointer. The way this works in Go may vary a bit from some other languages. The receiving type, however, works more or less like a class in most object-oriented programming. It … Read more
As pointed out (and hopefully unsurprisingly), using if+else is indeed the idiomatic way to do conditionals in Go. In addition to the full blown var+if+else block of code, though, this spelling is also used often: index := val if val <= 0 { index = -val } and if you have a block of code … Read more
Safe and simple: []byte(“Here is a string….”)
The Go reflection package has methods for inspecting the type of variables. The following snippet will print out the reflection type of a string, integer and float. package main import ( “fmt” “reflect” ) func main() { tst := “string” tst2 := 10 tst3 := 1.2 fmt.Println(reflect.TypeOf(tst)) fmt.Println(reflect.TypeOf(tst2)) fmt.Println(reflect.TypeOf(tst3)) } Output: Hello, playground string int … Read more
Methods that read data into byte slices return the number of bytes read. You should save that number and then use it to create your string. If n is the number of bytes read, your code would look like this: s := string(byteArray[:n]) To convert the full string, this can be used: s := string(byteArray[:len(byteArray)]) … Read more