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How to detect Safari, Chrome, IE, Firefox and Opera browser?

...Notification, which was introduced after version 7.1, to cover all Safaris from 3.0 and upwards. Opera: window.opera has existed for years, but will be dropped when Opera replaces its engine with Blink + V8 (used by Chromium). Update 1: Opera 15 has been released, its UA string looks like Chrome, bu...
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When you exit a C application, is the malloc-ed memory automatically freed?

...tack, delete static variables, etc, you would eventually crash your system from memory leaks or worse. Interesting aside to this, crashes/breaks in Ubuntu, and I suspect all other modern OSes, do have problems with "handled' resources. Sockets, files, devices, etc. can remain "open" when a program ...
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Why does sys.exit() not exit when called inside a thread in Python?

... What if I did want to exit the program from the thread? Apart from the method Deestan described you can call os._exit (notice the underscore). Before using it make sure that you understand that it does no cleanups (like calling __del__ or similar). ...
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Why do I get a “Null value was assigned to a property of primitive type setter of” error message whe

...ail once nulls are inserted. And you can always return the primitive type from the getter. Ex: private Integer num; public void setNum(Integer i) { this.num = i; } public int getNum() { return this.num; } But in most cases you will want to return the wrapper class. So either...
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VBoxManage: error: Failed to create the host-only adapter

...button to let Oracle (VirtualBox) load. MacOS by default can block kexts from loading. You must click the "allow" button before executing the VirtualBoxStartup.sh script. Then run: sudo "/Library/Application Support/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh" restart like the answer above. (...
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How to set timer in android?

...t3; long starttime = 0; //this posts a message to the main thread from our timertask //and updates the textfield final Handler h = new Handler(new Callback() { @Override public boolean handleMessage(Message msg) { long millis = System.currentTimeMillis() -...
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“You have mail” message in terminal, os X [closed]

... Probably it is some message from your system. Type in terminal: man mail , and see how can you get this message from your system. share | improve t...
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Intelligent point label placement in R

...0,0,0, 0.75), col.label="white") It works by automatically selecting an alternative location from a fine grid of points. The closest points on the grid are visited first and selected if they don't overlap with any plotted points or labels. Take a look at the source code, if you're in...
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Eclipse secure storage

...indows->preferences->then type "secure storage" In the Contents tab, select [Default Secure Storage]. Click Delete. Let Eclipse restart. share | improve this answer | ...
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How do you remove Subversion control for a folder?

...n that folder for .svn and that will list them all. Pressing Ctrl + A will select all of them and pressing delete will remove all the 'pesky' Subversion stuff. share | improve this answer |...