I want to create a package in Go with tests and examples for the package as subdirectories to keep the workspace cleaner. Is this possible and if so how? All the documentation always puts the testing code in the same place as the other code, is this better in some way or just convention? 4 … Read more
I’d like to parse the response of a web request, but I’m getting trouble accessing it as string. func main() { resp, err := http.Get(“http://google.hu/”) if err != nil { // handle error } defer resp.Body.Close() body, err := ioutil.ReadAll(resp.Body) ioutil.WriteFile(“dump”, body, 0600) for i:= 0; i < len(body); i++ { fmt.Println( body[i] ) // … Read more
I have a problem with import cycle not allowed It appears when I am trying to test my controller. Here is the output: can’t load package: import cycle not allowed package project/controllers/account imports project/controllers/base imports project/components/mux imports project/controllers/account import cycle not allowed package project/controllers/account imports project/controllers/base imports project/components/mux imports project/controllers/account import cycle not allowed package … Read more
I just had a problem where I had an array of structs, e.g. package main import “log” type Planet struct { Name string `json:”name”` Aphelion float64 `json:”aphelion”` // in million km Perihelion float64 `json:”perihelion”` // in million km Axis int64 `json:”Axis”` // in km Radius float64 `json:”radius”` } func main() { var mars = new(Planet) … Read more
I’m trying to create and use a custom package in Go. It’s probably something very obvious but I cannot find much information about this. Basically, I have these two files in the same folder: mylib.go package mylib type SomeType struct { } main.go package main import ( “mylib” ) func main() { } When I … Read more
I want to install packages from github to my $GOPATH, I have tried this: go get github.com:capotej/groupcache-db-experiment.git the repository is here. 4 Answers 4
I have a single file in the main package called main.go. Because the code isn’t reusable I want to separate part of the code in a different file but in the same package. How do I split the contents of main.go into multiple files without creating a separate package? I want a directory structure like … Read more
I see a lot of code in Go to detect nil, like this: if err != nil { // handle the error } however, I have a struct like this: type Config struct { host string port float64 } and config is an instance of Config, when I do: if config == nil { } … Read more
Which is the effective way to trim the leading and trailing white spaces of string variable in Go? 8 Answers 8
package main import ( “fmt” “strings” ) func main() { reg := […]string {“a”,”b”,”c”} fmt.Println(strings.Join(reg,”,”)) } gives me an error of: prog.go:10: cannot use reg (type [3]string) as type []string in argument to strings.Join Is there a more direct/better way than looping and adding to a var? 3 Answers 3
