Recent questions tagged Go

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go - Terminating function execution if a context is cancelled

I have this current function that originally was not context aware. func (s *Service) ChunkUpload(r *multipart. ... as a context is cancelled? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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go - GOMAXPROCS already be 2, but program still hang

I already set runtime.GOMAXPROCS(2), but this program still hang when output some numbers. I can see high cpu used ... { time.Sleep(1000) } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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go - Defer usage clarification

Let's assume I have the following function func printNumbers(){ var x int defer fmt.Println(x) for i := ... better way to resolve this problem. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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go - JSON single value parsing

In python you can take a json object and grab a specific item from it without declaring a struct, saving to a ... json body: %v", errJson) } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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798 views

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go - TypeOf without an instance and passing result to a func

Is it possible in go to get a "Type" without an instance? I've seen some examples that utilize reflect.TypeOf() ... that would be the Go way? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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972 views

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go - Create XML element without closing tag

I have this nested golang struct: // TierRequest is the outer most XML envelope of soap request type TierRequest ... like <soapenv:Header/>? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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go modules multiple main methods

I have a project with mutliple main methods. When running go build program1/main1.go which has a different set ... need to be updated.. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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948 views

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go - Remove elements in slice

I am complete newbie in Golang, I am trying to remove elements in one slice based on the elements in another slice ... t know what I am missing. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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go - Unmarshalling a JSON that may or may not return an array?

I'm retrieving JSON from a third party website (home electricity usage), and depending on what I've requested from ... m not 100% sure on them. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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go - goroutines order of execution

I'm trying to understand this piece of code, not sure why the 2nd go is executed before the 1st one. It'd be great ... ] 15 summing: [1 2 3] 6 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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go - String memory usage in Golang

I was optimising a code using a map[string]string where the value of the map was only either "A" or "B". So ... as a wich has only one letter ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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go - Why do these two float64s have different values?

Consider these two cases: fmt.Println(912 * 0.01) fmt.Println(float64(912) * 0.01) (Go Playground link) The ... a 9.12 literal when compiling? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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go - Stop goroutine execution on timeout

I want to stop goroutine execution on timeout. But it seems like it is not working for me. I am using iris ... as soon as there is timeout. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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968 views

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go - Golang template - how to render templates?

One layout template with three children templates. layout.html <html> <body> {{template "tags"}} {{template ... to layout output. Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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793 views

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go - How to get a map or list of template 'actions' from a parsed template?

So I would like to somehow get all of my {{ .blahblah }} actions defined in a template as slice of ... a parsed template like this? Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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976 views

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go - Pointer methods on non pointer types

According to this response to this question The rule about pointers vs. values for receivers is that value methods ... the question is wrong ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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722 views

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go - Best practice to handle error from multiple abstract level

I wondering what is the best way to handle error form multiple level abstraction in go. Every time if I must ... this same task in logFile. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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873 views

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go - How to set which IP to use for a HTTP request?

I dont know if it's possible as the std lib does not state anything about the current address being used: http:// ... for that kind of stuff... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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919 views

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go - How to solve "too many arguments to return" issue

In a print function I am writing, I am trying to return a value based on the result of a switch statement; ... = "Unknown" } return sentAnal } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.4k views

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go - Getting a use of package without selector error

I'm using this config library called Viper In my main I have this: viper.SetConfigName("development") viper. ... what I should be doing? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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957 views

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go - Closing channel of unknown length

I'm not able to close channel when there is no knowledge about its length package main import ( "fmt" " ... to close channel in this situation? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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872 views

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go - Are Golang function parameter passed as copy-on-write?

I've got the following function: func checkFiles(path string, excludedPatterns []string) { // ... } I'm ... passing by value or by pointer. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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go - golang type assertion using reflect.Typeof()

I've tried to identify a struct with string value(name). reflect.TypeOf returns Type. But type assertion needs a type. ... : %v ", item2) } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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go - Find all string matches with Regex golang

I am trying to return an array, or slice, with all the matches for a specific regex expression against a string. ... time no matter what I try. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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go - Unmarshal nested JSON structure

http://play.golang.org/p/f6ilWnWTjm I am trying to decode the following string but only getting null values. How ... &cont) fmt.Println(cont) } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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928 views

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go - Regex with replace in Golang

I've used regexp package to replace bellow text {% macro products_list(products) %} {% for product in products %} ... endfor %} {% endmacro %} See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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823 views

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go - Why use arrays instead of slices?

I have been reading up on Go, and got stumped thinking about this fundamental question. In Go, it is quite ... slices would be unsuited for? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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838 views

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go - Using a pointer to array

I'm having a little play with google's Go language, and I've run into something which is fairly basic ... results appear for most search terms. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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