I am pretty new to go and I was playing with this notify package. At first I had code that looked like this: func doit(w http.ResponseWriter, r *http.Request) { notify.Post(“my_event”, “Hello World!”) fmt.Fprint(w, “+OK”) } I wanted to append newline to Hello World! but not in the function doit above, because that would be pretty … Read more
Is it possible to increment a minor version number automatically each time a Go app is compiled? I would like to set a version number inside my program, with an autoincrementing section: $ myapp -version MyApp version 0.5.132 Being 0.5 the version number I set, and 132 a value that increments automatically each time the … Read more
I’m new to Go and I’m experiencing a bit of cognitive dissonance between C-style stack-based programming where automatic variables live on the stack and allocated memory lives on the heap and Python-style stack-based-programming where the only thing that lives on the stack are references/pointers to objects on the heap. As far as I can tell, … Read more
Is it OK to leave a Go channel open forever (never close the channel) if I never check for its state? Will it lead to memory leaks? Is the following code OK? func (requestCh chan<- Request) GetResponse(data RequestData) Response { reply := make(chan Response) requestCh <- Request{data: data, replyCh: reply} return <-reply } 6 Answers … Read more
What is the Go way for extracting the last element of a slice? var slice []int slice = append(slice, 2) slice = append(slice, 7) slice[len(slice)-1:][0] // Retrieves the last element The solution above works, but seems awkward. 5 Answers 5
Looking how actively golang packages grow and improve I wonder how the problem with package versions is solved? I see that one way is to store third-party packages under a project folder. But what if I install it with go get? 8 Answers 8
fmt.Println(“Enter position to delete::”) fmt.Scanln(&pos) new_arr := make([]int, (len(arr) – 1)) k := 0 for i := 0; i < (len(arr) – 1); { if i != pos { new_arr[i] = arr[k] k++ i++ } else { k++ } } for i := 0; i < (len(arr) – 1); i++ { fmt.Println(new_arr[i]) } I am … Read more
Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 2 years ago. Improve this question Note: this question is related to this one, but two years is a very long time … Read more
The interactive environment is VERY helpful for a programmer. However, it seems Go does not provide it. Is my understanding correct? 12 Answers 12
I’ve been trying to figure out how to simply list the files and folders in a single directory in Go. I’ve found filepath.Walk, but it goes into sub-directories automatically, which I don’t want. All of my other searches haven’t turned anything better up. I’m sure that this functionality exists, but it’s been really hard to … Read more
