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Is non-blocking I/O really faster than multi-threaded blocking I/O? How?

I searched the web on some technical details about blocking I/O and non blocking I/O and I found several people stating that non-blocking I/O would be faster than blocking I/O. For example in this document . ...
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How to correctly save instance state of Fragments in back stack?

.... In the fragment, save instance state by overriding onSaveInstanceState() and restore in onActivityCreated(): class MyFragment extends Fragment { @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); ... i...
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How to send POST request?

... If you really want to handle with HTTP using Python, I highly recommend Requests: HTTP for Humans. The POST quickstart adapted to your question is: >>> import requests >>> r = requests.post("http://bugs.python.org", data={'number...
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When should one use RxJava Observable and when simple Callback on Android?

...e getUserPhoto example: RxJava: api.getUserPhoto(photoId) .observeOn(AndroidSchedulers.mainThread()) .subscribe(new Action1<Photo>() { @Override public void call(Photo photo) { // do some stuff with your photo } }); Callback:...
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How to properly reuse connection to Mongodb across NodeJs application and modules

I've been reading and reading and still am confused on what is the best way to share the same database (MongoDb) connection across whole NodeJs app. As I understand connection should be open when app starts and reused between modules. My current idea of the best way is that server.js (main file wh...
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How can I make XSLT work in chrome?

...e local web page places the contents of your inbox into a <textarea> and submits the data via a form POST to the attacker's web server. Now the attacker has your inbox, which may be useful for spamming or identify theft. Chrome foils the above scenario by putting restrictions on local files ...
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How to delete object from array inside foreach loop?

I iterate through an array of objects and want to delete one of the objects based on it's 'id' property, but my code doesn't work. ...
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How do I set bold and italic on UILabel of iPhone/iPad?

How do I set bold and italic on UILabel of iPhone/iPad? I searched the forum but nothing helped me. Could anyone help me? ...
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C# DateTime to “YYYYMMDDHHMMSS” format

...M = months, h = 12 hour, H = 24 hour. I suspect someone started with time and said hms = hours mins seconds, then H became 24 hour and then they got to date and ran out of unique letters so went with case. Just one of those things. – Douglas Anderson May 23 '...
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Gridview height gets cut

...gridview height is always too little, so that it only shows the first row, and a little part of the second. 6 Answers ...