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How to set the thumbnail image on HTML5 video?
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Add poster="placeholder.png" to the video tag.
<video width="470" height="255" poster="placeholder.png" controls>
<source src="video.mp4" type="video/mp4">
<source src="video.ogg" type="video/ogg">
<source src="video.webm" type="video/webm">
<obj...
What's the difference between lapply and do.call?
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AndrieAndrie
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4
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Is there a way to select sibling nodes?
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145
Well... sure... just access the parent and then the children.
node.parentNode.childNodes[]
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What is a lambda expression in C++11?
...le cases the return type of the lambda is deduced for you, e.g.:
void func4(std::vector<double>& v) {
std::transform(v.begin(), v.end(), v.begin(),
[](double d) { return d < 0.00001 ? 0 : d; }
);
}
however when you start to write more complex lambd...
Set value for particular cell in pandas DataFrame using index
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640
RukTech's answer, df.set_value('C', 'x', 10), is far and away faster than the options I've sugg...
How to set up tmux so that it starts up with specified windows opened?
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sshow
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answered Apr 22 '11 at 6:35
AmjithAmjith
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C++ equivalent of java's instanceof
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fredoverflow
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answered Feb 1 '09 at 9:34
LaserallanLaserallan
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Getting the path of the home directory in C#?
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edited Sep 18 '17 at 13:47
StackzOfZtuff
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answered Jul 17 '09...
Are Exceptions in C++ really slow
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The main model used today for exceptions (Itanium ABI, VC++ 64 bits) is the Zero-Cost model exceptions.
The idea is that instead of losing time by setting up a guard and explicitly checking for the presence of exceptions everywhere, the compiler generates a side table that maps any po...
How to run multiple shells on Emacs
... shell (rather than eshell), this trick doesn't seem to work (in my Emacs 24.0.50.1 at least.)
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