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How to design a multi-user ajax web application to be concurrently safe

... a connected user efficiently. Observer-Pattern is your friend for this. 2. Client-Side: A javascript client that is able to have a long-running HTTP-Connection to said server above, or uses lightweight polling. A javascript artifact-updater component that refreshes the sites content when the co...
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Performance of static methods vs instance methods

...come up with normal use than those which come up with strange use. Number 2. Makes no difference. There's a certain amount of per-class cost for each member it terms of both how much metadata there is, how much code there is in the actual DLL or EXE file, and how much jitted code there'll be. This ...
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Mockito test a void method throws an exception

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How disable Copy, Cut, Select, Select All in UITextView

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Test PHP headers with PHPUnit

... 123 The issue is that PHPUnit will print a header to the screen and at that point you can't add mor...
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How to access app.config in a blueprint?

... | edited Apr 21 at 14:56 davidism 88.4k1717 gold badges279279 silver badges265265 bronze badges ...
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Adding information to an exception?

... 121 I'd do it like this so changing its type in foo() won't require also changing it in bar(). def...
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NSLog an object's memory address in overridden description method

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Why switch is faster than if

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Which, if any, C++ compilers do tail-recursion optimization?

...); int foo(int n, int acc) { return (n == 0) ? acc : bar(n - 1, acc + 2); } int bar(int n, int acc) { return (n == 0) ? acc : foo(n - 1, acc + 1); } Letting the compiler do the optimisation is straightforward: Just switch on optimisation for speed: For MSVC, use /O2 or /Ox. For GCC, Cl...