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Show a number to two decimal places
...
http://php.net/manual/en/function.round.php
e.g.
echo round(5.045, 2); // 5.05
echo round(5.055, 2); // 5.06
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Difference between Covariance & Contra-variance
...r words you could completely get rid of co- and contravariant "markup" on .Net interfaces and delegates, if you only used the type dynamic in your types. - But this is not the best solution in C# (you shouldn't use dynamic in public interfaces).
Back to theory:
The described conformance (covariant...
Design Patterns web based applications [closed]
...dering them onto the browser to be handled in the presentation layer. For .Net, the ASP.NET MVC pattern is very good in terms of keeping the layers separated. Look into the MVC pattern.
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What are MVP and MVC and what is the difference?
...n WebForms. The reason is that the View is always created first by the ASP.NET runtime. You can find out more about both variants.
Two primary variations
Passive View: The View is as dumb as possible and contains almost zero logic. A Presenter is a middle man that talks to the View and the Model. Th...
How do browser cookie domains work?
...wing should apply:
Cookie with Domain=.example.com will be available for www.example.com
Cookie with Domain=.example.com will be available for example.com
Cookie with Domain=example.com will be converted to .example.com and thus will also be available for www.example.com
Cookie with Domain=example...
PHP - Check if two arrays are equal
...y are the same
}
You can read about all array operators here:
http://php.net/manual/en/language.operators.array.php
Note for example that === also checks that the types and order of the elements in the arrays are the same.
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Make multiple-select to adjust its height to fit options without scroll bar
...seInt($("#multiSelect option").length) * 20);
});
Demo:
http://jsfiddle.net/AZEFU/
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When are C++ macros beneficial? [closed]
...e. For example, when wrapping C++ code to be used with other interfaces (.NET, COM, Python, etc...), I need to catch different types of exceptions. Here's how I do that:
#define HANDLE_EXCEPTIONS \
catch (::mylib::exception& e) { \
throw gcnew MyDotNetLib::Exception(e); \
} \
catch (::std...
Detecting when user scrolls to bottom of div with jQuery
...{
alert('end reached');
}
})
});
http://jsfiddle.net/doktormolle/w7X9N/
Edit: I've updated 'bind' to 'on' as per:
As of jQuery 1.7, the .on() method is the preferred method for attaching event handlers to a document.
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Is a Java string really immutable?
...to 'protect' code. This seems to be widely misunderstood in both Java and .NET. Although the previous comment does contradict that; I don't know much about Java, but in .NET this is certainly true. In neither language should users assume this makes their code hack-proof.
– Tom ...