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Haskell function composition (.) and function application ($) idioms: correct use
... tend to want to think of f.g.h as a new clever creation rather f(g(h())). Now they're calling a new, albeit anonymous, function which they created rather than just chaining a big dictionary of prefabbed function calls like a PHP user.
– Evan Carroll
Jun 22 '10...
Stop caching for PHP 5.5.3 in MAMP
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Disable OPCache
MAMP now turns on OPCache by default, you can disable it by editing your php.ini file. Make sure you edit the correct php.ini.
I was running into the same problem myself. MAMP with PHP version 5.5.3 runs OPcache by default, but y...
How should equals and hashcode be implemented when using JPA and Hibernate
...ces your entity in bucket #1. b) your entity (within set) is persisted, it now does have an id and thus you're using hashCode() based on that id. It's different from above and would have placed your entity in the bucket #2. Now, assuming you hold a reference to this entity elsewhere, try calling Set...
How does one reorder columns in a data frame?
... @user4050: you can also use df[,c(1,3,2,4:ncol(df))] when you don't know how many columns there are.
– arekolek
Mar 15 '16 at 14:28
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Programmatically access currency exchange rates [closed]
...change Rates project data has been moved away from GitHub.
It is available now at: http://openexchangerates.org/
Data in JSON format is available at: http://openexchangerates.org/latest.json
No access fees, no rate limits, No ugly XML - just free, hourly updated exchange rates in JSON format.
This ...
How do I convert a dictionary to a JSON String in C#?
...rt my Dictionary<int,List<int>> to JSON string. Does anyone know how to achieve this in C#?
13 Answers
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what is the basic difference between stack and queue?
...or arguments sake, what if I want the first pancake added to the plate? I know this can be completed with a stack.size() vs. if(!stack.isEmpty()), but still that first pancake might be the best one :)... Either way, nice answer and I agree this is the clearest...seems interesting that the British re...
How can I run code on a background thread on Android?
...k or update UI with data retrieved from background process.
If you don't know how to start here is nice tutorial:
Understanding AsyncTask – Once and
Forever
Note: Also there is possibility to use IntentService with ResultReceiver that works as well.
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What does it mean to hydrate an object?
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I have changed my mind, and now I agree that this answer is more accurate than my old answer. I have since edited my answer (since it was accepted, and I want it to be accurate). Now hopefully it now reflects the difference between deserialization and h...
Problems with contenttypes when loading a fixture in Django
... corrupt data due to objects referring to wrong objects and you don't yet know about it
– Ski
Feb 10 '15 at 18:30
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