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NSURLRequest setting the HTTP header

...de to make a request, but it's returning nil data. I tried to what's wrong and only thing i could come up was the response value coming back has different value for "Content-Type" as opposed to what i'm trying to append in the beginning of code. request.setValue("Some value", forHTTPHeaderField: "Co...
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Programmatically change the src of an img tag

... @william44isme and our page will be loaded slower than before. i think the jQuery is useful just for websites that uses a same code, very more. for example if we use the above code more than 30 or 50 times. so it's necessary to use jQuery ...
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Referring to the null object in Python

... And the reason for choosing egg is None over egg == None: The latter can be overloaded, and is likely to break when comparing valid object with None (depends on how it's implemented, but you don't expect everyone to take comp...
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How to tell if browser/tab is active [duplicate]

...tched to another tab. It serves no purpose if the user isn't looking at it and is potentially CPU-intensive, so I don't want to just waste cycles in the background. ...
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Why does += behave unexpectedly on lists?

... The general answer is that += tries to call the __iadd__ special method, and if that isn't available it tries to use __add__ instead. So the issue is with the difference between these special methods. The __iadd__ special method is for an in-place addition, that is it mutates the object that it a...
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Android Studio: Plugin with id 'android-library' not found

I've been trying to get ActionBarSherlock to work and having some issue. One issue I've come across is the following message when trying to build it: ...
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No IUserTokenProvider is registered

... what are "Sample" and "EmailConfirmation"? some text that can be anything? – Cybercop Mar 25 '14 at 13:18 ...
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Android ListView Divider

...why you should use 1px instead of 1dp or 1dip: if you specify 1dp or 1dip, Android will scale that down. On a 120dpi device, that becomes something like 0.75px translated, which rounds to 0. On some devices, that translates to 2-3 pixels, and it usually looks ugly or sloppy For dividers, 1px is the...
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Android notification is not showing

I need a program that will add a notification on Android. And when someone clicks on the notification, it should lead them to my second activity. ...
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Call two functions from same onclick [duplicate]

... You can create a single function that calls both of those, and then use it in the event. function myFunction(){ pay(); cls(); } And then, for the button: <input id="btn" type="button" value="click" onclick="myFunction();"/> ...