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What is a “feature flag”?
High Scalability mentions feature flags here:
12 Answers
12
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How to loop through file names returned by find?
...ime, read through the rest to see several different ways and the problems with most of them.
The full answer:
The best way depends on what you want to do, but here are a few options. As long as no file or folder in the subtree has whitespace in its name, you can just loop over the files:
for i ...
Most efficient way to increment a Map value in Java
...sented in the question
the "TestForNull" method suggested by Aleksandar Dimitrov
the "AtomicLong" method suggested by Hank Gay
the "Trove" method suggested by jrudolph
the "MutableInt" method suggested by phax.myopenid.com
Method
Here's what I did...
created five classes that were identical exc...
Error java.lang.OutOfMemoryError: GC overhead limit exceeded
I get this error message as I execute my JUnit tests:
20 Answers
20
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Is it possible to use a div as content for Twitter's Popover
I am using twitter's bootstrap's popover here . Right now, when i scroll over the popover text a popover appears with just text from the <a> 's data-content attribute. I was wondering if there was anyway to put a <div> inside the popover. Potentially, I would like to use php and...
Measuring execution time of a function in C++
...ant to make a speed comparison . I saw several time function but ended up with this from boost. Chrono:
11 Answers
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How to set time zone of a java.util.Date?
I have parsed a java.util.Date from a String but it is setting the local time zone as the time zone of the date object.
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Adding images or videos to iPhone Simulator
I am trying to use UIImagePickerController with UIImagePickerControllerSourceTypePhotoLibrary , but it says, "No photos". Where does the simulator get the images from? Where should I copy the images so that they are displayed in the simulator?
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Is Tomcat running?
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Why grep ps, when the pid has been written to the $CATALINA_PID file?
I have a cron'd checker script which sends out an email when tomcat is down:
kill -0 `cat $CATALINA_PID` > /dev/null 2>&1
if [ $? -gt 0 ]
then
echo "Check tomcat" | mailx -s "T...
What techniques can be used to define a class in JavaScript, and what are their trade-offs?
...ple of ways to go about doing that. What would be the syntax and why would it be done in that way?
19 Answers
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