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Get top n records for each group of grouped results
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A note for anyone reading this: The version is the variables is close to being correct. However, MySQL does not guarantee the order of evaluation of expressions in the SELECT (and, in fact, sometimes evaluates them out-of-order). The key to...
Convert a Python list with strings all to lowercase or uppercase
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Besides being easier to read (for many people), list comprehensions win the speed race, too:
$ python2.6 -m timeit '[x.lower() for x in ["A","B","C"]]'
1000000 loops, best of 3: 1.03 usec per loop
$ python2.6 -m timeit '[x.upper() for x in ["a","b"...
OSGi: What are the differences between Apache Felix and Apache Karaf?
...ionality other than a basic console, file loading so that you can actually read configuration files, etc. The latest zip file of it is 19.1 MB. Yeah. Small. It can easily run on small devices and work in embedded.
What you may be thinking of is something more like ServiceMix which uses Karaf as ...
How to step through Python code to help debug issues?
...ar from perfect and completely rudimentary if compared to GDB, but it is already a huge improvement over pdb.
Usage is analogous to pdb, just install it with:
python3 -m pip install --user ipdb
and then add to the line you want to step debug from:
__import__('ipdb').set_trace(context=21)
You ...
How to create a fixed-size array of objects
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This question has already been answered, but for some extra information at the time of Swift 4:
In case of performance, you should reserve memory for the array, in case of dynamically creating it, such as adding elements with Array.append().
v...
WebRTC - scalable live stream broadcasting / multicasting
...rtp packet.
It all works pretty well, the documentation is fairly easy to read and understand. I suggest you start with the "echotest" example, it is the simplest and you can understand the inner workings of Janus. I suggest you edit the echo test file to make your own, because there is a lot of re...
Ruby on Rails console is hanging when loading
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This worked for me with Rails 4.1.1. I need to read up on Spring gem to see what it's doing.
– jetimms
Oct 7 '14 at 2:29
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Jquery Ajax Posting json to webservice
...ur data, but the POSTed data appears to be URLEncoded JSON You may have already seen it, but this post about the invalid JSON primitive covers why the JSON is being URLEncoded.
I'd advise against passing a raw, manually-serialized JSON string into your method. ASP.NET is going to automatically JSO...
How can I print a circular structure in a JSON-like format?
...tions: {showHidden, depth, colors, showProxy, ...moreOptions}])
Please, read and give kudos to commenters below...
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Difference between JAX-WS, Axis2 and CXF
...rison.htm
http://www.ibm.com/developerworks/java/library/j-jws11/
And, I read above links, its preety helpful for me. I hope it works for u too.
Thanks !
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