4 ms·

instant feedback is possible in Go as it compiles super fast. Also its much simpler to write cause its a small language and the concurrency primitives are so si

instant feedback is possible in Go as it compiles super fast. Also its much simpler to write cause its a small language and the concurrency primitives are so simple to understand and use. It has its problems but its a great choice here. The most valid reason for using a language is simply because the team is comfortable with it.

3fe9a03ccd14ca5 6y ago
Considering they got it working so quickly, I think they made the right choice.
capableweb 6y ago
> instant feedback is possible in Go as it compiles super fast Heh, you should try a language that comes with a repl and allows you to evaluate code directly from your editor in any context and get the results back. Then you'll have experienced "instant feedback". Until then, I can agree that Golang compiles faster than other languages, but it's nowhere near instant. In some other languages, you don't really care how fast it compiles as you only do it for deployments anyways (like Clojure).
- kortex 6y ago
  Many options https://repl.it/languages/go https://repl.it/languages/go https://github.com/d5/tengo https://github.com/d5/tengo https://github.com/motemen/gore https://github.com/motemen/gore Also you kinda don't need a repl as much with go (coming from a python background and constantly repl-dev-ing), especially with an IDE. Everything is so clear and type-safe there is little divide between the architecture in my mind and the code's behavior.
  - capableweb 6y ago
    It's not that you don't need a repl. It's that you don't really get the many benefits other repl-heavy languages have, like Smalltalk and the many different lisps. You got a lot of implicit state and other non-ergonimic constructs in the language that doesn't lend itself to live in a repl for development. Also I expanded a bit more on why Golang doesn't fit for repls in general here: https://news.ycombinator.com/item?id=23053343 https://news.ycombinator.com/item?id=23053343
- foldr 6y ago
  A REPL only gives you instant feedback on code that you type into the REPL. If you make some changes to three modules and you want to find out the effect of those changes then you need to...recompile the modules. Having a REPL doesn't help. I don't find that a REPL really gives me anything that I don't get from tests in Go. The only difference in practice is that I type the code into a text editor rather than into a REPL prompt (which is actually a better experience). On top of that, it's usually good to have that kind of code saved somewhere rather than existing ephemerally in a REPL session.
  - capableweb 6y ago
    Depends on how the language you use works. Golang is not made for repl usage so of course you don't really get the full power. Compare with something like Clojure where redefining a function in a repl, makes every function using that function also use the new definition. Start treating functions as just functions without any implicit state, and you can start to overwrite things in the program on the fly. Super valuable when debugging and otherwise also when creating code as you can much easier test ideas. I don't know if it has a different word, but a repl for Clojure using a repl-workflow is very different from a repl for Golang with the normal "save -> compile -> run" workflow you have with Go. For example, using a repl-workflow in Clojure doesn't mean you don't write code in your editor. I use vim + vim-fireplace to write my code, then highlight the parts I want to evaluate. So I get both in one. The repl is running in the background, and vim-fireplace communicates with it. Combine this with a SPA and I can have something like `(.alert js/window @username)`, highlight it and evaluate, then have an alert prompt in my browser window, which is next to my editor. Saves me a ton of time.
    - foldr 6y ago
      Yes, I've used Clojure and other Lisps before. The thing is, I don't want to overwrite function definitions in a REPL, because I then lose track of what code I'm actually running. It's much more effective just to make changes in a text editor and track your state using version control. In a language that compiles quickly, a REPL just adds an additional layer of complexity for no benefit. In a language that doesn't compile quickly, redefining functions on the fly in a REPL is a useful hack that lessens the pain somewhat. >I use vim + vim-fireplace to write my code, then highlight the parts I want to evaluate. So I get both in one. Sure, and with Go in VSCode, I just click 'run' above the test I just wrote. It isn't any more difficult.
- vijaybritto 6y ago
  Yes thats a good example. But not needing JVM and single binary output take out so much complexity.
geeklord 6y ago
I see. Being comfortable is the one of the most important factors.

3fe9a03ccd14ca5 6y ago

Considering they got it working so quickly, I think they made the right choice.

capableweb 6y ago

> instant feedback is possible in Go as it compiles super fast Heh, you should try a language that comes with a repl and allows you to evaluate code directly from your editor in any context and get the results back. Then you'll have experienced "instant feedback". Until then, I can agree that Golang compiles faster than other languages, but it's nowhere near instant. In some other languages, you don't really care how fast it compiles as you only do it for deployments anyways (like Clojure).

kortex 6y ago
Many options https://repl.it/languages/go https://repl.it/languages/go https://github.com/d5/tengo https://github.com/d5/tengo https://github.com/motemen/gore https://github.com/motemen/gore Also you kinda don't need a repl as much with go (coming from a python background and constantly repl-dev-ing), especially with an IDE. Everything is so clear and type-safe there is little divide between the architecture in my mind and the code's behavior.
- capableweb 6y ago
  It's not that you don't need a repl. It's that you don't really get the many benefits other repl-heavy languages have, like Smalltalk and the many different lisps. You got a lot of implicit state and other non-ergonimic constructs in the language that doesn't lend itself to live in a repl for development. Also I expanded a bit more on why Golang doesn't fit for repls in general here: https://news.ycombinator.com/item?id=23053343 https://news.ycombinator.com/item?id=23053343
foldr 6y ago
A REPL only gives you instant feedback on code that you type into the REPL. If you make some changes to three modules and you want to find out the effect of those changes then you need to...recompile the modules. Having a REPL doesn't help. I don't find that a REPL really gives me anything that I don't get from tests in Go. The only difference in practice is that I type the code into a text editor rather than into a REPL prompt (which is actually a better experience). On top of that, it's usually good to have that kind of code saved somewhere rather than existing ephemerally in a REPL session.
- capableweb 6y ago
  Depends on how the language you use works. Golang is not made for repl usage so of course you don't really get the full power. Compare with something like Clojure where redefining a function in a repl, makes every function using that function also use the new definition. Start treating functions as just functions without any implicit state, and you can start to overwrite things in the program on the fly. Super valuable when debugging and otherwise also when creating code as you can much easier test ideas. I don't know if it has a different word, but a repl for Clojure using a repl-workflow is very different from a repl for Golang with the normal "save -> compile -> run" workflow you have with Go. For example, using a repl-workflow in Clojure doesn't mean you don't write code in your editor. I use vim + vim-fireplace to write my code, then highlight the parts I want to evaluate. So I get both in one. The repl is running in the background, and vim-fireplace communicates with it. Combine this with a SPA and I can have something like `(.alert js/window @username)`, highlight it and evaluate, then have an alert prompt in my browser window, which is next to my editor. Saves me a ton of time.
  - foldr 6y ago
    Yes, I've used Clojure and other Lisps before. The thing is, I don't want to overwrite function definitions in a REPL, because I then lose track of what code I'm actually running. It's much more effective just to make changes in a text editor and track your state using version control. In a language that compiles quickly, a REPL just adds an additional layer of complexity for no benefit. In a language that doesn't compile quickly, redefining functions on the fly in a REPL is a useful hack that lessens the pain somewhat. >I use vim + vim-fireplace to write my code, then highlight the parts I want to evaluate. So I get both in one. Sure, and with Go in VSCode, I just click 'run' above the test I just wrote. It isn't any more difficult.
vijaybritto 6y ago
Yes thats a good example. But not needing JVM and single binary output take out so much complexity.

geeklord 6y ago

I see. Being comfortable is the one of the most important factors.