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Recent questions tagged GO
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go - What is the method set of `sync.WaitGroup`?
I have this simple program below package main import ( "fmt" "sync" "time" ) var wg sync.WaitGroup func main ... . Why/How does this work? See Question&Answers more detail:os...
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go - Any smart method to get exp/html back after Go1?
I've installed the Go release version as root. Go1 removed all exp/ code. Is there smart method to get exp/* ... $HOME/repo/go/src/pkg/exp . See Question&Answers more detail:os...
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go - Golang monkey patching
I understand that if go code is structured such that it's programmed to interfaces, it's trivial to ... without touching the underlying code. See Question&Answers more detail:os...
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Oct 24, 2021
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go - How check if a property was set in a struct
I am trying to find how check if a structure property was set, but i cannot find any way. I expect something ... { //do something with this } See Question&Answers more detail:os...
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Oct 24, 2021
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974
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go back to the previous form (c#)
I know how to go to another form in modal mode just like what I did below: public partial class Form1 : Form { ... here to show form1 again } } See Question&Answers more detail:os...
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Oct 24, 2021
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go
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go - How to inspect slice header?
This is slightly modified code from slices var buffer [256] byte func SubtractOneFromLength(slice []byte) []byte ... of newSlice2 on my screen? See Question&Answers more detail:os...
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Oct 24, 2021
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978
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go - nil slice when passed as interface is not nil! Why? (golang)
See this playground: http://play.golang.org/p/nWHmlw1W01 package main import "fmt" func main() { var i ... in output between the two functions? See Question&Answers more detail:os...
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Oct 24, 2021
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go - Custom errors in golang and pointer receivers
Reading about value receivers vs pointer receivers across the web and stackoverflow, I understand the basic rule ... are using pointers? See Question&Answers more detail:os...
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Oct 24, 2021
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go - Where to put "defer req.Body.Close()"?
I have net/http handlers that have defer req.Body.Close() in each on web server side. What is the correct ... can put it in the beginning? See Question&Answers more detail:os...
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Oct 24, 2021
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go - What input will cause golang's json.Marshal to return an error?
From the docs: JSON cannot represent cyclic data structures and Marshal does not handle them. Passing cyclic ... include the inputs used. See Question&Answers more detail:os...
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Oct 24, 2021
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go readline -> string
What is the idiomatic way to do a readline to string in Go? the raw functions provided in the standard library ... out of a readline function? See Question&Answers more detail:os...
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Oct 24, 2021
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go - How to get the reflect.Type of an interface?
In order to determine whether a given type implements an interface using the reflect package, you need to pass a ... .TypeOf(err).Kind()) See Question&Answers more detail:os...
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Oct 24, 2021
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913
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go - how to put a backquote in a backquoted string?
is it possible to print back quotes in Go using back quotes : something like this: package main import "fmt" func ... with double quotes """ } See Question&Answers more detail:os...
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Oct 24, 2021
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go
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850
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go - Slice as a key in map
Is it possible to use slices as keys? There is my attempt: h := map[[]string]string{ []string{"a", "b"} : ... so, what would be a correct way?). See Question&Answers more detail:os...
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Oct 24, 2021
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go - Setting pointers to nil to prevent memory leak in Golang
I'm learning Go, and as an exercise I wanted to implement a linked list. For reference I looked at ... the entire chain remains uncollected. See Question&Answers more detail:os...
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Oct 24, 2021
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go
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go - What happens when defer is called twice on same variable?
What happened when defer called twice when the struct of that method has been changed? For example: rows := Query ... last rows.Close() called? See Question&Answers more detail:os...
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Oct 24, 2021
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go
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go - How to use "internal" packages?
I try understand how to organize go code using "internal" packages. Let me show what the structure I have: ... and not from the outside. See Question&Answers more detail:os...
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Oct 24, 2021
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912
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go - How to fork a process
I need help understanding how to demonize a process in Go. package main import ( "fmt" "os" ) func start() ... : "panic" to wrong memory pointer See Question&Answers more detail:os...
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Oct 24, 2021
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go - Using binary packages directly
I'm writing a library in Go. I'm planning to distribute it, and with a main requirement of 'without source ... in advance for your help guys! See Question&Answers more detail:os...
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Oct 24, 2021
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go - How to execute a simple Windows command in Golang?
How to run a simple Windows command? This command: exec.Command("del", "c:\aaa.txt") .. outputs this message ... %path% What am I doing wrong? See Question&Answers more detail:os...
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Oct 24, 2021
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go
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701
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go - Convert []string to []interface{}
I just want to write some code like this: func (w Writer) WriteVString(strs []string) (int, error) { return ... rather than []byte and string. See Question&Answers more detail:os...
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Oct 24, 2021
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go
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909
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go - Decode JSON with unknown structure
I want to get a string that represents a json like this one: { "votes": { "option_A": "3" } } and include ... struct varies. How can I do this? See Question&Answers more detail:os...
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Oct 24, 2021
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go
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go - "used as value" in function call
What's the proper way of calling functions when evaluating their values in conditional statements? package main import " ... write this in Go? See Question&Answers more detail:os...
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Oct 24, 2021
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go - Golang dynamically creating member of struct
I know there is struct in Go, but for all I know, you have to define struct type Circle struct{ x,y,r ... new(Circle) circle.color = "black" See Question&Answers more detail:os...
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Oct 24, 2021
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go
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go - Specifically check for timeout error
I use the following to check for timeouts when calling a webservice, but I would like to check specifically if there ... (to), }, } } See Question&Answers more detail:os...
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Oct 24, 2021
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go
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1.2k
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go - Check if there is something to read on STDIN in Golang
I need a command line utility to behave different if some string is piped into its STDIN. Here's some minimal ... this going? Thanks in advance! See Question&Answers more detail:os...
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Oct 24, 2021
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go
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867
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go - Nullable time.Time
I have a struct that I intend to populate with a database record, one of the datetime columns is nullable: type ... elegant way to handle this? See Question&Answers more detail:os...
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Oct 24, 2021
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800
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go - Is there a difference between new() and "regular" allocation?
In Go, is there a notable difference between the following two segments of code: v := &Vector{} as opposed to v := new(Vector) See Question&Answers more detail:os...
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Oct 24, 2021
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