Re: [go-nuts] Refactor Asynchronous JS to Go
On Sun, Nov 06, 2022 at 01:33:59AM +0530, Shubh Karman Singh wrote: > I am refactoring a JS library to Go. I have some questions but I'm not able > to find some concrete answers for this. > 1. What's the idiomatic way to refactor Asynchronous JS APIs to Go? > 2. How to refactor Callbacks from JS to Golang? I have seen some Go code > which takes function as an input parameter. Is the intent same here? While my exposure to programming is twice as less than that of Kurtis, I would like to support his view on this. The chief idea of Go's concurrency is that it's integrated into the language's code - as opposed to be bolted on in form of a library, as is the case with most other popular programming languages out there. This is one of the reasons why you don't see many callbacks in idomatic Go code: they are either not needed or their functionality is implemented via sending values via channels and a set of patterns involving them (see [1, 2, 3]). For a good and fun overview of that "in core" vs "as a library" distinction please see [4]. 1. https://go.dev/blog/concurrency-timeouts 2. https://go.dev/blog/pipelines 3. https://go.dev/blog/io2013-talk-concurrency 4. https://journal.stuffwithstuff.com/2015/02/01/what-color-is-your-function/ -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/20221106104252.mu5ttxabdhthy26d%40carbon.
Re: [go-nuts] Refactor Asynchronous JS to Go
On Sat, Nov 5, 2022 at 1:58 PM Shubh Karman Singh wrote: > I am refactoring a JS library to Go. I have some questions but I'm not > able to find some concrete answers for this. > 1. What's the idiomatic way to refactor Asynchronous JS APIs to Go? > 2. How to refactor Callbacks from JS to Golang? I have seen some Go code > which takes function as an input parameter. Is the intent same here? > I've been programming for more than four decades. In that time I've personally rewritten three apps in a different language. I've also read several post translation reports for other projects. The most important lesson is that it is usually a mistake to perform a literal translation. In fact, of the rewrites I've participated in or read about a literal translation was appropriate in only one case. That was the first one I ever did: translating Donald Knuth's TeX typesetting program from Pascal to C. I haven't written any Javascript in over a decade. But translating its async API pattern to idiomatic Go is likely to involve starting a goroutine for each async op and having the goroutine communicate a result via a channel. For your second question, yes, functions are first-class objects in Go and can be passed to other functions to perform a specialized operation or act as a callback. -- Kurtis Rader Caretaker of the exceptional canines Junior and Hank -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/CABx2%3DD_vVxKcvaeg-S2RJwNXs64s_O-tHhJsGBDaX9yB8V8Xyg%40mail.gmail.com.
[go-nuts] Refactor Asynchronous JS to Go
Hi, I am refactoring a JS library to Go. I have some questions but I'm not able to find some concrete answers for this. 1. What's the idiomatic way to refactor Asynchronous JS APIs to Go? 2. How to refactor Callbacks from JS to Golang? I have seen some Go code which takes function as an input parameter. Is the intent same here? -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/CACvy5SdjEoLwYuTHDNSr80QbhwJY1tJVx9wANM06EvLFLiAAuA%40mail.gmail.com.
