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How to select .NET 4.5.2 as a target framework in Visual Studio

I have installed .NET Framework 4.5.2 on Windows 8.1. But in Visual Studio 2013 I do not see the .NET Framework 4.5.2 option (see screenshot). How do I target my project for .NET 4.5.2? ...
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Most efficient way to concatenate strings?

...o" + var1 + "bar" + var2 + "hello" + var3 + "world", the compiler automatically turns that into a string.concat call, which is as efficient as it gets. This answer is incorrect, there are plenty of better answers to choose from – csauve Jan 12 '11 at 17:56 ...
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C++ Object Instantiation

... On the contrary, you should always prefer stack allocations, to the extent that as a rule of thumb, you should never have new/delete in your user code. As you say, when the variable is declared on the stack, its destructor is automatically called when it goes out of scope...
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Selecting the first “n” items with jQuery

... items from the page, for example the first 20 links instead of selecting all of them with the usual 6 Answers ...
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What does the term “porcelain” mean in Git?

The term "porcelain" appears occasionally in the Git documentation. What does it mean? 9 Answers ...
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Is there any particular difference between intval and casting to int - `(int) X`?

... behavior is a little surprising given the fact that the function theoretically can do base conversion. It definitely tripped me up before, but perhaps I just need to RTFM a bit more carefully :) – t-dub Feb 10 '12 at 17:07 ...
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Arduino Sketch upload issue - avrdude: stk500_recv(): programmer is not responding

...it works. I figured the packets were some attempt at a hand-shake. So basically, I solved it using Google, patience and futzing around with the board! – hoipolloi Jan 12 '14 at 18:16 ...
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JavaScript check if variable exists (is defined/initialized)

... You want the typeof operator. Specifically: if (typeof variable !== 'undefined') { // the variable is defined } share | improve this answer | ...
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How to change the map center in Leaflet.js

...r location. How do I change the center of the map to a new position after calling the initialize function? 4 Answers ...
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Why does PEP-8 specify a maximum line length of 79 characters? [closed]

... and get on with writing good, consistently formatted code. Sure, no one really thinks that 79 is optimal, but there's no obvious gain in changing it to 99 or 119 or whatever your preferred line length is. I think the choices are these: follow the rule and find a worthwhile cause to battle for, or p...