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Why are side-effects modeled as monads in Haskell?
...tion has side effects. If we take all the effects it produces as the input and output parameters, then the function is pure to the outside world.
So, for an impure function
f' :: Int -> Int
we add the RealWorld to the consideration
f :: Int -> RealWorld -> (Int, RealWorld)
-- input some st...
Git commits are duplicated in the same branch after doing a rebase
I understand the scenario presented in Pro Git about The Perils of Rebasing . The author basically tells you how to avoid duplicated commits:
...
Why doesn't Ruby support i++ or i-- (increment/decrement operators)?
The pre/post increment/decrement operator ( ++ and -- ) are pretty standard programing language syntax (for procedural and object-oriented languages, at least).
...
What is the difference between Nexus and Maven?
What is the difference between Nexus and Maven ?
3 Answers
3
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Is it possible to target older iOS versions when using Xcode 4.2 and iOS 5 SDK?
I just recently downloaded the Xcode 4.2 with iOS 5 SDK package and I immediately noticed that I am unable to use my iPhone 3Gs with iOS 4.2.1 for debugging. I am only able to debug and test on my iphone 4 with iOS 5 installed.
...
Including one C source file in another?
...mplex, performance critical subsystem with a fairly small public interface and a lot of non-reusable implementation code. The code runs to several thousand lines, a hundred or so private functions and quite a bit of private data. If you work with non-trivial embedded systems, you probably deal with ...
Hudson or Teamcity for continuous integration? [closed]
We are a Java shop looking for a CI tool to use.
Both Hudson and Teamcity seem to be free but Teamcity seems slicker and with more support.
...
What's the complete range for Chinese characters in Unicode?
...e list through the CJK Unicode FAQ (which does include "Chinese, Japanese, and Korean" characters)
The "East Asian Script" document does mention:
Blocks Containing Han Ideographs
Han ideographic characters are found in five main blocks of the Unicode Standard, as
shown in Table 12-2
Table 12-2. Bl...
What exactly is OAuth (Open Authorization)?
...e list of your friends).
If you read it stated as plainly, I would understand your confusion. So let's go with a concrete example: joining yet another social network!
Say you have an existing GMail account. You decide to join LinkedIn. Adding all of your many, many friends manually is tiresome and...
What is the purpose of Serialization in Java?
I have read quite a number of articles on Serialization and how it is so nice and great but none of the arguments were convincing enough. I am wondering if someone can really tell me what is it that we can really achieve by serializing a class?
...