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Array or List in Java. Which is faster?
...ter than getting from an ArrayList, although the difference is only on the order of one nanosecond.
set operations
I ran 2 tests, executing the following statements:
setList: list.set(0, value);
setArray: array[0] = value;
Results (in nanoseconds per call):
a.p.g.a.ArrayVsList.setArray [4.201, 4...
How to save all the variables in the current python session?
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If you use shelve, you do not have to remember the order in which the objects are pickled, since shelve gives you a dictionary-like object:
To shelve your work:
import shelve
T='Hiya'
val=[1,2,3]
filename='/tmp/shelve.out'
my_shelf = shelve.open(filename,'n') # 'n' for ne...
How to pass parameters to the DbContext.Database.ExecuteSqlCommand method?
...ce code and found that it's using DbCommand.CreateParameter to wrap up any raw values into parameters. So no SQL injection, and a nice succinct method invocation.
– Josh Gallagher
Nov 17 '11 at 11:52
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How do I address unchecked cast warnings?
...g a new map with the generic types is pointless as you could still make it raw and put whatever.
– MetroidFan2002
Mar 6 '14 at 20:22
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How do I create a link using javascript?
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In order to avoid XSS, you should avoid string concatenation (+) and .innerHTML when building HTML. With jQuery, .attr("href", desiredLink) and .text(desiredText) are what you want here.
– Wes Turner
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Android: Test Push Notification online (Google Cloud Messaging) [closed]
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Detect encoding and make everything UTF-8
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Bitwise operation and usage
...the data type, Python simply expands the width to cater for extra bits. In order to get the discarding behaviour in Python, you can follow a left shift with a bitwise and such as in an 8-bit value shifting left four bits:
bits8 = (bits8 << 4) & 255
With that in mind, another example of ...
How do you perform a left outer join using linq extension methods
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You need to remember to Order your joined table or the .FirstOrDefault() is going to get a random row from the multiple rows that might match the join criteria, whatever the database happens to find first.
– Chris Moschini
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Node.js vs .Net performance
...running on one core to an IIS and tomcat process using multiple cores. In order to properly compare, you need to run node clustered. See nodejs.org/api/cluster.html for a simple to use cluster solution. However, I can tell you from experience, the difference between node and async c# is 10-15% ei...