go – IT Nursery

Import cycle not allowed

June 2, 2022 by IT Nursery

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

How can I install a package with go get?

June 2, 2022 by IT Nursery

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

How can I “go run” a project with multiple files in the main package?

June 1, 2022 by IT Nursery

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

nil detection in Go

June 1, 2022 by IT Nursery

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

How to trim leading and trailing white spaces of a string?

June 1, 2022 by IT Nursery

Which is the effective way to trim the leading and trailing white spaces of string variable in Go? 8 Answers 8

How to join a slice of strings into a single string?

June 1, 2022 by IT Nursery

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

Can I list all standard Go packages?

May 31, 2022 by IT Nursery

Is there a way in Go to list all the standard/built-in packages (i.e., the packages which come installed with a Go installation)? I have a list of packages and I want to figure out which packages are standard. 3 Answers 3

How to import local packages without gopath

May 30, 2022 by IT Nursery

I’ve used GOPATH but for this current issue I’m facing it does not help. I want to be able to create packages that are specific to a project: myproject/ ├── binary1.go ├── binary2.go ├── package1.go └── package2.go I tried multiple ways but how do I get package1.go to work in the binary1.go or the binary2.go … Read more

“undefined” function declared in another file?

May 30, 2022 by IT Nursery

I’m trying to write a basic go program that calls a function on a different file, but a part of the same package. However, it returns: undefined: NewEmployee Here is the source code: main.go: package main func main() { emp := NewEmployee() } employee.go: package main type Employee struct { name string age int } … Read more

How to set default values in Go structs

May 28, 2022 by IT Nursery

There are multiple answers/techniques to the below question: How to set default values to golang structs? How to initialize structs in golang I have a couple of answers but further discussion is required. 10 Answers 10