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How do I uniquely identify computers visiting my web site?

I need to figure out a way uniquely identify each computer which visits the web site I am creating. Does anybody have any advice on how to achieve this? ...
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What is the meaning of addToBackStack with null parameter?

...mean by get the fragment later. More information @ http://developer.android.com/guide/components/fragments.html http://developer.android.com/reference/android/app/FragmentTransaction.html#addToBackStack(java.lang.String) ...
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Stopping an Android app from console

Is it possible to stop an Android app from the console? Something like: 11 Answers 11 ...
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How can I draw vertical text with CSS cross-browser?

...lso accepts left, right, top, bottom coordinates; not required, but a good idea for styling */ -webkit-transform-origin: 50% 50%; -moz-transform-origin: 50% 50%; -ms-transform-origin: 50% 50%; -o-transform-origin: 50% 50%; transform-origin: 50% 50%; /* Should be unset in IE9+ I think. *...
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How do I get the current GPS location programmatically in Android?

...e source code is in Get Current Location coordinates , City name - in Android. See how it works: All we need to do is add this permission in the manifest file: <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> And create a LocationManager instance like this: Lo...
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How can I check whether a radio button is selected with JavaScript?

...et's pretend you have HTML like this <input type="radio" name="gender" id="gender_Male" value="Male" /> <input type="radio" name="gender" id="gender_Female" value="Female" /> For client-side validation, here's some Javascript to check which one is selected: if(document.getElementById...
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POSTing a @OneToMany sub-resource association in Spring Data REST

... an Address and an address MUST be associated with a Venue? I mean...to avoid creating an orphaned address which may never be assigned to anything? Maybe Im wrong, but the client app SHOULD NEVER be responsible maintaining consistency within the database. I cannot rely on client app creating an Addr...
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Declaring array of objects

...pr 1 '13 at 11:21 Frédéric HamidiFrédéric Hamidi 232k3737 gold badges445445 silver badges455455 bronze badges ...
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Unioning two tables with different number of columns

...he use of * as column list specifier. This type of errors can be easily avoided by entering the column list explicitly: select col_a, col_b, col_c from test1_1790 union all select col_a, col_b, col_c from test2_1790; A more frequent scenario for this error is when you inadvertently swap (or shift) ...
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How do I access the $scope variable in browser's console using AngularJS?

...cope printed out in the console. You can also target the scope by element ID, like so: angular.element(document.getElementById('yourElementId')).scope() Addons/Extensions There are some very useful Chrome extensions that you might want to check out: Batarang. This has been around for a while....