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How do I copy a hash in Ruby?
...any object that can be marshalled. Most built-in data types (Array, Hash, String, &c.) can be marshalled.
Marshalling is Ruby's name for serialization. With marshalling, the object--with the objects it refers to--is converted to a series of bytes; those bytes are then used to create another o...
What's the recommended approach to resetting migration history using Django South?
...t a longer variant of manage.py convert_to_south my_app, but I prefer that extra control, in such delicate situation as modifying the production database.
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error: Unable to find vcvarsall.bat
...haracters, then you need to check that you path variable does not have any extraneous characters like extra quotations or stray characters. The batch file is not going to be able to update your session path if it can't make sense of it in the first place.
If that went well, you should get one of the...
Error handling in getJSON calls
...ended!'); });
And with error description plus showing all json data as a string:
$.getJSON("example.json", function(data) {
alert(JSON.stringify(data));
})
.done(function() { alert('getJSON request succeeded!'); })
.fail(function(jqXHR, textStatus, errorThrown) { alert('getJSON request failed! ...
C++ Build Systems - What to use? [closed]
...o use QMake). But, you're not describing "simple" -- code generation and "extra-phases" means you probably want CMake or something with a rich API for your own extensions, like Scons (or Waf).
We use Scons at work. It produces "bullet-proof-builds", but it's really slow. No other system will be ...
Build and Version Numbering for Java Projects (ant, cvs, hudson)
...t;
...
</manifest>
</target>
...
Your java code
String ver = MyClass.class.getPackage().getImplementationVersion();
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What is the difference between old style and new style classes in Python?
...I can see of the new-style classes. There is a disadvantage, which is the extra typing of (object).
– recursive
May 3 '11 at 12:45
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What scalability problems have you encountered using a NoSQL data store? [closed]
...ays drawbacks for our circumstances (e.g. missing/immature Java support).
Extra benefit of (ab)using MySQL - the bits of our model that do work relationally can be easily linked to our key/value store data.
Update: here's an example of how we represented text content, not our actual business domai...
Difference between JSONObject and JSONArray
...ed items
(Which could be JSON objects)
2. Array values must be of type string, number, object, array, boolean or null
3. Syntax:
[ "Ford", "BMW", "Fiat" ]
4. JSON arrays are surrounded by square brackets [].
**Tip to remember** : Here, order of element is important. That mea...
Regex for quoted string with escaping quotes
How do I get the substring " It's big \"problem " using a regular expression?
16 Answers
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