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Why sizeof int is wrong, while sizeof(int) is right?
...that sizeof is an operator used for calculating the size of any datatype and expression, and when the operand is an expression, the parentheses can be omitted.
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Preventing console window from closing on Visual Studio C/C++ Console application
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I just tested this in VS2017 and VS2019. It requires both setting the subsystem to CONSOLE and turning this option off. Having one or the other or neither closes the window automatically.
– Casey
Jul 27 '19 at 16:39...
Getting attribute using XPath
...he XML document.
To get just the string value of this attribute use the standard XPath function string():
string(/*/book[1]/title/@lang)
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Multiple modals overlay
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After seeing many fixes for this, and none of them were exactly what I needed I've came up with a even shorter solution that is inspired by @YermoLamers & @Ketwaroo.
Backdrop z-index fix
This solution uses a setTimeout because the .modal-backdrop isn't c...
Getting the filenames of all files in a folder [duplicate]
... edited Jul 24 '18 at 7:27
Andrei Suvorkov
4,91144 gold badges1515 silver badges3535 bronze badges
answered Apr 17 '11 at 15:31
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How to copy text programmatically in my Android app?
I'm building an Android app and I want to copy the text value of an EditText widget. It's possible for the user to press Menu+A then Menu+C to copy the value, but how would I do this programmatically?
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What does it mean that Javascript is a prototype based language?
...of the objects which inherit from it.
Advantages
There may not be a hard and fast rule as to why prototypal inheritance is an advantageous form of code-reuse. Code reuse itself is advantageous, and prototypal inheritance is a sensible way of going about it. You might argue that prototypal inheri...
Is there an R function for finding the index of an element in a vector?
In R, I have an element x and a vector v . I want to find the first index of an element in v that is equal to x . I know that one way to do this is: which(x == v)[[1]] , but that seems excessively inefficient. Is there a more direct way to do it?
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How to concatenate columns in a Postgres SELECT?
I have two string columns a and b in a table foo .
8 Answers
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List of Big-O for PHP functions
...ght it'd be good idea to have it for reference somewhere. I've gone though and either via benchmark or code-skimming to characterize the array_* functions. I've tried to put the more interesting Big-O near the top. This list is not complete.
Note: All the Big-O where calculated assuming a hash look...