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How to play with Control.Monad.Writer in haskell?
I'm new to functional programming and recently learning at Learn You a Haskell , but when I went through this chapter , I got stuck with the program below:
...
How to work around the lack of transactions in MongoDB?
I know there are similar questions here but they are either telling me to switch back to regular RDBMS systems if I need transactions or use atomic operations or two-phase commit . The second solution seems the best choice. The third I don't wish to follow because it seems that many things coul...
What's the UIScrollView contentInset property for?
...set = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 7.0)
Here's a good iOS Reference Library article on scroll views that has an informative screenshot (fig 1-3) - I'll replicate it via text here:
_|←_cW_→_|_↓_
| |
---------------
|content| ↑
↑ |content| contentInset.t...
Unable to find valid certification path to requested target - error even after cert imported
...andshake print each handshake message
keygen print key generation data
session print session activity
defaultctx print default SSL initialization
sslctx print SSLContext tracing
sessioncache print session cache tracing
keymanager print key manager trac...
How to have an auto incrementing version number (Visual Studio)? [duplicate]
...If you add an AssemblyInfo class to your project and amend the AssemblyVersion attribute to end with an asterisk, for example:
[assembly: AssemblyVersion("2.10.*")]
Visual studio will increment the final number for you according to these rules (thanks galets, I had that completely wrong!)
To ref...
How do you make a web application in Clojure? [closed]
I suppose this is a strange question to the huge majority of programmers that work daily with Java. I don't. I know Java-the-language, because I worked on Java projects, but not Java-the-world. I never made a web app from scratch in Java. If I have to do it with Python, Ruby, I know where to go (Dja...
Soft hyphen in HTML ( vs. ­)
...p ­ usage due to specific bugs in Webkit (affecting Safari, Safari iOS and Chrome latest versions) causing weird characters rendering with a significant number of custom fonts (both free and commercial)
– Nico Pernice
Nov 6 '15 at 18:24
...
python generator “send” function purpose?
Can someone give me an example of why the "send" function associated with Python generator function exists? I fully understand the yield function. However, the send function is confusing to me. The documentation on this method is convoluted:
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Calculate the median of a billion numbers
If you have one billion numbers and one hundred computers, what is the best way to locate the median of these numbers?
25 A...
Simple way to transpose columns and rows in SQL?
...your original post, you stated that PIVOT seems too complex for this scenario, but it can be applied very easily using both the UNPIVOT and PIVOT functions in SQL Server.
However, if you do not have access to those functions this can be replicated using UNION ALL to UNPIVOT and then an aggregate f...