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prototype based vs. class based inheritance

In JavaScript, every object is at the same time an instance and a class. To do inheritance, you can use any object instance as a prototype. ...
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On design patterns: When should I use the singleton?

...ptable" reasons to use a Singleton. One reason that tends to come up over and over again on the internets is that of a "logging" class (which you mentioned). In this case, a Singleton can be used instead of a single instance of a class because a logging class usually needs to be used over and over ...
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How to handle code when app is killed by swiping in android?

If my app is running and i press home button, the app goes in background. Now if a long press the home button and kill the app by swiping it from the recent app list, none of the events like onPause() , onStop() or onDestroy() gets called rather the process is terminated. So if i want my servic...
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Deploying my application at the root in Tomcat

...couple of options: Remove the out-of-the-box ROOT/ directory from tomcat and rename your war file to ROOT.war before deploying it. Deploy your war as (from your example) war_name.war and configure the context root in conf/server.xml to use your war file : <Context path="" docBase="war_name" de...
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Hash and salt passwords in C#

...- which the membership provider does to put them into config files. Hashes and salts are binary blobs, you don't need to convert them to strings unless you want to put them into text files. In my book, Beginning ASP.NET Security, (oh finally, an excuse to pimp the book) I do the following static ...
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Adding days to $Date in PHP

... ' + 1 days')); echo date('Y-m-d', strtotime($Date. ' + 2 days')); ?> And it outputs correctly: 2010-09-18 2010-09-19 share | improve this answer | follow ...
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Can I find out the return value before returning while debugging in Intellij?

...oint on Object method(){ . This will allow you to watch for the entrance and exit of the method. I believe you have to use this in conjunction with "Watch method return values" like stated above, but I haven't been able to completely test this as it takes too long to compute. Beware, this does dr...
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Fatal Error: Allowed Memory Size of 134217728 Bytes Exhausted (CodeIgniter + XML-RPC)

...ion. Please don't do that. Your PHP code may have a memory leak somewhere and you are telling the server to just use all the memory that it wants. You wouldn't have fixed the problem at all. If you monitor your server, you will see that it is now probably using up most of the RAM and even swapping...
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How do I center text horizontally and vertically in a TextView?

How do I center the text horizontally and vertically in a TextView , so that it appears exactly in the middle of the TextView in Android ? ...
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Scala: What is a TypeTag and how do I use it?

...hat they somehow replaced Manifests. Information on the Internet is scarce and doesn't provide me with a good sense of the subject. ...