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Remove directory which is not empty
In my Node application I need to remove a directory which has some files, but fs.rmdir only works on empty directories. How can I do this?
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std::string to float or double
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std::string num = "0.6";
double temp = ::atof(num.c_str());
Does it for me, it is a valid C++ syntax to convert a string to a double.
You can do it with the stringstream or boost::lexical_cast but those come with a performance penalty.
Ahaha you have a Qt project ...
QString winOpacity("0...
Difference between Hashing a Password and Encrypting it
...unction (well, a mapping). It's irreversible, you apply the secure hash algorithm and you cannot get the original string back. The most you can do is to generate what's called "a collision", that is, finding a different string that provides the same hash. Cryptographically secure hash algorithms are...
Generate random numbers following a normal distribution in C/C++
How can I easily generate random numbers following a normal distribution in C or C++?
18 Answers
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How to check if a variable is an integer in JavaScript?
...JavaScript, and throw an alert if it isn't? I tried this, but it doesn't work:
38 Answers
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What is Cache-Control: private?
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To answer your question about why caching is working, even though the web-server didn't include the headers:
Expires: [a date]
Cache-Control: max-age=[seconds]
The server kindly asked any intermediate proxies to not cache the contents (i.e. the item should only be ca...
Adding System.Web.Script reference in class library
...ave tagged several methods with [System.Web.Script.Serialization.ScriptIgnore] attributes. My class library cannot see this namespace. My add references dialog cannot see this namespace. How do I properly use this tag from a class library?
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How do I change the background color of a plot made with ggplot2
...lt, ggplot2 produces plots with a grey background. How do I change the color of the background of the plot?
3 Answers
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What is the difference between aggregation, composition and dependency? [duplicate]
...d Room (child). Rooms don't exist separate to a House.
The above two are forms of containment (hence the parent-child relationships).
Dependency is a weaker form of relationship and in code terms indicates that a class uses another by parameter or return type.
Dependency is a form of association....
How to download all files (but not HTML) from a website using wget?
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To filter for specific file extensions:
wget -A pdf,jpg -m -p -E -k -K -np http://site/path/
Or, if you prefer long option names:
wget --accept pdf,jpg --mirror --page-requisites --adjust-extension --convert-links --backup-converted...