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Can you change what a symlink points to after it is created?
...ystem call — not command line program) to change the pathname referenced by a symbolic link (symlink) — other than by unlinking the old one and creating a new one?
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Using jQuery how to get click coordinates on the target element
...es you the relative Position of an element i.e.,
consider an element is embedded inside another element
example :
<div id="imParent">
<div id="imchild" />
</div>
Ref : http://api.jquery.com/position/
HTML
<body>
<div id="A" style="left:100px;"> Default ...
How to determine if a point is in a 2D triangle? [closed]
...ite optimal) algorithm is checking on which side of the half-plane created by the edges the point is.
Here's some high quality info in this topic on GameDev, including performance issues.
And here's some code to get you started:
float sign (fPoint p1, fPoint p2, fPoint p3)
{
return (p1.x - p3...
Best place to insert the Google Analytics code [duplicate]
Where’s the best place to insert the Google Analytics code in WordPress, header or footer? I prefer footer, because I wanted my site to load faster by reducing the number of scripts in the header, but can it work even if the script is in the footer?
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Lambda function in list comprehensions
...e following two list comprehensions different, even though f and the lambda function are the same?
6 Answers
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Ruby send vs __send__
I understand the concept of some_instance.send but I'm trying to figure out why you can call this both ways. The Ruby Koans imply that there is some reason beyond providing lots of different ways to do the same thing. Here are the two examples of usage:
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Using arrays or std::vectors in C++, what's the performance gap?
In our C++ course they suggest not to use C++ arrays on new projects anymore. As far as I know Stroustroup himself suggests not to use arrays. But are there significant performance differences?
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What does the C++ standard state the size of int, long type to be?
I'm looking for detailed information regarding the size of basic C++ types.
I know that it depends on the architecture (16 bits, 32 bits, 64 bits) and the compiler.
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When should I use double instead of decimal?
I can name three advantages to using double (or float ) instead of decimal :
12 Answers
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What's the difference between a Future and a Promise?
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According to this discussion, Promise has finally been called CompletableFuture for inclusion in Java 8, and its javadoc explains:
A Future that may be explicitly completed (setting its value and status), and may be used as a Com...