This is a very simple rock paper scissors game implemented in Haskell.
import System.IO (hFlush, stdout)
import System.Random (getStdGen, randomR)
data RPS = Rock | Paper | Scissors deriving (Eq, Show, Read)
instance Ord RPS where
Rock `compare` Scissors = GT
Scissors `compare` Rock = ...
@RubberDuck The stack trace is created once, when creating the IllegalArgumentException, which is a constant. So no matter from where you throw the exception, the stack trace will always be the same.
Well I'm wrting a C++ client application which will send some data to server and wait for its response. Now the protocol is to wait for specific timeout and then retry for specific times. If all goes wrong client will report a failure communication.
I have implemented the whole matter in a non ...
I am trying to write a simple Buffer container class that will behave like std::vector. It should construct only elements that are truly within the buffer, so the rest of the buffer ([size, capacity)) is left uninitialized.
This is my current copy assignment operator:
template <typename Type, t...
And that is why you shouldn't compare against boolean literals.
Ultimately, false is generally0, and true is generally1 is you look at how the values are defined (if you took the byte and treated it as if it were an int rather than a bool).
No, @Mat'sMug... your IDE won't let you compare it to anything other than true or false, which is different from the values it can actually have. It's still an entire byte.
Well, regarding your first and second point. Thats a microsoft convention used in most of the cases, so I do follow that. Third and Fourth points are just to make the code more readable in my opinions. — hypheni6 mins ago
@hypheni Never compare against boolean literals. Ever. I'd be more okay seeing a GOTO statement than a comparison verse boolean literal. — nhgrif1 min ago
I currently have an implementation that helps us deduplicate data but I know it's slow.
Here's an example, note that I'm using OpenStruct here when really these are Mongoid objects pulled from the database.
require 'ostruct'
vendor_data = [
OpenStruct.new(activity_id: "abc123"),
OpenStruct...
This answer doesn't really do much to explain why posting the code as a comparitive review actually garnered some sort of answer that posting one version or the other of the code wouldn't have managed to gather. With that in mind, I'm not sure why this answer has so many upvotes. — nhgrif8 secs ago
This might be a bad comparison... but I think asking a comparative review question on Code Review is sort of like asking an "Is it possible..." question on Stack Overflow.
"Is it possible..." is a terrible question for Stack Overflow.
You should instead be asking "How do I..."
"Is it possible..." is a Yes/No answer. And just out of habit, people will answer the "How do I..." part of the question.
"Which is better..." is an A/B answer. And just out of habit, reviewers will ignore the fact that you've asked which is better and attempt telling you how to write the absolute best version of either.
The fact that you've included two versions of the code in your question just makes that more difficult to do.
Yes. If there is an answer to "How do I..." then the answer to "Is it possible..." is obviously "Yes" (unless the answer to "How do I..." is "You can't.")
The difference is that on Code Review, you have a lot of liberty to answer the way you want. The exact way the question is posed isn't as important — it's just a way to get the conversation started.
Okay... but a comparitive review question actually tends to narrow the conversation down. Personally, once someone has shown me two versions of code and asked which is better, it's hard for me to start thinking about what the best way I might do it would be... first I feel the need to tell them which one actually is better.
Which one is better is irrelevant unless one of them is perfect and cannot be improved upon.
So while we can manage comparative review questions, I don't think they're good for the site because they're markedly harder to deal with than regular questions.
The asker should pick the one they think is most promising. They should ask for a review of that one. Then based on feedback of that one, perhaps implement feedback from version A into version B and ask about improved version B.
I know you're Mr. Anti-hypothetical, @200_success, but what would you think of a comparative review question which compares a class written in Objective-C to one written in Swift?
These languages can be compiled together.
It's not like .NET where they have to be entirely different DLLs. They can compile from raw source into the same binary.
If it's C# or VB, that might be the question because it's a library level decision. You can't make that decision on a file-by-file basis.
In a single project for a single binary, I can interchange languages at will on a file-by-file basis.
I wrote one implementation of a class in Objective-C, another implementation in Swift. Same as any other comparative review, except I also used different languages, because Xcode let's me do that.
Why is it primarily opinion based if the implementations are different languages, but it's not opinion based if Implementation A uses library A and implementation B uses library B?
I told you to assume that the question is what you would consider a perfecetly fine legitimate comparative review in every aspect, then throw on top of that the fact that it is two different languages.
I have a ViewController with a bunch of data and I want to save it to CoreData. I have manager class which add, delete, find etc. that kind of data.
My first thought was to pass this data to manager as objects like that:
func saveEvent(sender:AnyObject) {
println("\n Tytuł: \(titleCell.tex...
so I can only come up with this code logic. I'm curious if anyone can come up with a better code structure(loops, checks) than what I have done. I need to change the structure because my teacher was unhappy with the for loop and if else's for whatever reason.
The code takes an English phrase an ...
If you can't decide between two pieces of code which is better, it can only be because you haven't adequately defined your criteria which would tell you which is better, or because you haven't adequately tested your code against those criteria.
Before you spend a lot of time writing an iOS app in Visual Studio for Windows...
Can you build the binaries properly from Windows?
Like, can you build to a device? And will Visual Studio build the .ipa file that you can install to devices via iTunes and that you need to send to iTunes Connect?
And anyone that knows the Windows frameworks really well likely won't know Objective-C really well.
Learning the frameworks is more than half the battle. If I were an Objective-C developer that knew nothing about .NET, it'd probably be easier for me to learn VB.NET or C#.NET, both of which will have tons of example code, than it would be for me to learn Objective-C.NET
Maybe @nhgrif. Personally, I think if the .net tag stays around, it should be used for questions regarding actual framework code. Which would be extraordinarily rare...
1) Changing frameworks entirely counts as 'few minimal changes'? Okay. 2) Did Microsoft get the memo that last WWDC Apple announced Swift and this WWDC, Apple will be *strongly* pushing everyone toward Swift (away from the 30+-year-old Objective-C)?
Right. You already have an app that's doing well on iOS, but don't want to support it in Win because it would take a total rewrite in a totally different language.
Now it's much easier to port and expand your market.
Which is in turn good for them. They're bootstrapping.
I made a method that I can use to avoid having to handle errors from callbacks.
What it does is, call the passed method only if the first argument is null.
So essentially it will bypass to the last method, if an error occurs.
Feedback is welcome.
/**
* continueIf
*
* Returns a continuation m...
Microsoft have OneNote and Onedrive on the Mac App Store, so it's not they couldn't, but that requires Apple having a copy of the source code, remember
> Developers on these platforms are also often perfectly happy with using a regular code editor like Sublime Text instead of a full IDE like Visual Studio.
@Quill No it doesn't.
I've never sent source code to Apple.
I have 3 apps on the iOS app store.
> Developers on these platforms are also often perfectly happy with using a regular code editor like Sublime Text instead of a full IDE like Visual Studio.
Article was written by someone who has never used Xcode or Eclipse.
> The editor features all of the standard tools you would expect from a modern code editor, including syntax highlighting, customizable keyboard bindings, bracket matching and snippets.
Article was written by someone who posts terrible questions on SO because they don't know how to use a debugger.
heh, so I just found a page on the website of the company I'll be started with in June...
So far I've met the two "Lead iOS Developer"s plus one other iOS dev (they did my technical interview). And the other two people I've been talking with are the CTO and the VP of Technology.
Below is one the current version of my wifimap script:
#!/usr/bin/python
"""
Sniffs on the WiFi network and generates a graph showing the communication
between the devices, including information about the announced SSIDs. Will
loop infinitely - kill the program with SIGINT in order to stop it
g...
I have written two hash map implementations, one that stores Vertices and one that stores self implemented vectors of Edges.
They are all fully functioning, however in my application they are quite slow and was hoping if anyone could point out how to improve their speed.
Vertex Hash Map
public ...
It boggles one's mind (my own, at least) that there is no simple, native way to import/reference a JavaScript module within a different JavaScript module.
This is a very simple rock paper scissors game implemented in Haskell.
import System.IO (hFlush, stdout)
import System.Random (getStdGen, randomR)
data RPS = Rock | Paper | Scissors deriving (Eq, Show, Read)
instance Ord RPS where
Rock `compare` Scissors = GT
Scissors `compare` Rock = ...
Well I'm wrting a C++ client application which will send some data to server and wait for its response. Now the protocol is to wait for specific timeout and then retry for specific times. If all goes wrong client will report a failure communication.
I have implemented the whole matter in a non ...
I currently have an implementation that helps us deduplicate data but I know it's slow.
Here's an example, note that I'm using OpenStruct here when really these are Mongoid objects pulled from the database.
require 'ostruct'
vendor_data = [
OpenStruct.new(activity_id: "abc123"),
OpenStruct...
I have a ViewController with a bunch of data and I want to save it to CoreData. I have manager class which add, delete, find etc. that kind of data.
My first thought was to pass this data to manager as objects like that:
func saveEvent(sender:AnyObject) {
println("\n Tytuł: \(titleCell.tex...
This (silent) video shows the Batmobile in the new Batman v Superman movie:
However, 14 seconds in we see:
Why would ...
I made a method that I can use to avoid having to handle errors from callbacks.
What it does is, call the passed method only if the first argument is null.
So essentially it will bypass to the last method, if an error occurs.
Feedback is welcome.
/**
* continueIf
*
* Returns a continuation m...
Below is one the current version of my wifimap script:
#!/usr/bin/python
"""
Sniffs on the WiFi network and generates a graph showing the communication
between the devices, including information about the announced SSIDs. Will
loop infinitely - kill the program with SIGINT in order to stop it
g...
I have written two hash map implementations, one that stores Vertices and one that stores self implemented vectors of Edges.
They are all fully functioning, however in my application they are quite slow and was hoping if anyone could point out how to improve their speed.
Vertex Hash Map
public ...
