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Difference between objectForKey and valueForKey?

...rKey:@"Z"]); // prints "Value for Z:(null)" uint32_t testItemsCount = 1000000; // create huge dictionary of numbers NSMutableDictionary *d = [NSMutableDictionary dictionaryWithCapacity:testItemsCount]; for (long i=0; i<testItemsCount; ++i) { // make new random key value p...
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Websocket API to replace REST API?

... @Gabe apparently node can easily take 100's of socket-io connections on a cheap aws instance. We didn't notice any performance issues yet. One of the strange effects though, is that people who visit your website once, but then leave the website open in a tab, con...
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How many Activities vs Fragments?

... +100 I agree that the tutorials are very simplified. They just introduce Fragments but I do not agree with the pattern as suggested. I a...
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Does use of final keyword in Java improve the performance?

...me). public class FinalTest { public static final int N_ITERATIONS = 1000000; public static String testFinal() { final String a = "a"; final String b = "b"; return a + b; } public static String testNonFinal() { String a = "a"; String b = "b...
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How to remove the border highlight on an input text element

...e along the lines of this. .wrapper { width: 500px; max-width: 100%; margin: 0 auto; } form, label { margin: 1em auto; } label { display: block; } input { outline: none; } <div class="wrapper"> <form> <label>Click on this text and th...
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How do I set a variable to the output of a command in Bash?

... $user $home done {list}</etc/passwd Then echo -n "${users[@]}" 1000 1000 user /home/user ... 65534 65534 nobody /nonexistent and echo ${!users[@]} 1000 ... 65534 echo -n "${users[1000]}" 1000 1000 user /home/user Using this way let STDIN free fo...
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Why shouldn't I use “Hungarian Notation”?

...tation for all my projects. I find it really helpful when I'm dealing with 100s of different identifier names. For example, when I call a function requiring a string I can type 's' and hit control-space and my IDE will show me exactly the variable names prefixed with 's' . Another advantage, when...
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Memory management in Qt?

... 100 If you build your own hierarchy with QObjects, that is, you initialise all newly created QObje...
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What is the ultimate postal code and zip regex?

... be much better suited to a database. The regex would look something like 10000|10001|10002|10003|....... – Kibbee Feb 23 '09 at 17:17 ...
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Android ListView with different layouts for each row

... android:layout_alignParentEnd="true" android:layout_marginTop="100dp" /> </android.support.design.widget.CoordinatorLayout> share | improve this answer | ...