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Func vs. Action vs. Predicate [duplicate]
...mparisons.
Though widely used with Linq, Action and Func are concepts logically independent of Linq. C++ already contained the basic concept in form of typed function pointers.
Here is a small example for Action and Func without using Linq:
class Program
{
static void Main(string[] args)
...
Preventing console window from closing on Visual Studio C/C++ Console application
...7 (15.9.4) there is an option:
Tools->Options->Debugging->Automatically close the console
The corresponding fragment from the Visual Studio documentation:
Automatically close the console when debugging stops:
Tells Visual Studio to close the console at the end of a debugging session.
...
How to check whether a variable is a class or not?
...nd Python 3.x.
import six
isinstance(obj, six.class_types)
This is basically a wrapper function that performs the same check as in andrea_crotti answer.
Example:
>>> import datetime
>>> isinstance(datetime.date, six.class_types)
>>> True
>>> isinstance(datet...
How to handle change of checkbox using jQuery?
...do stuff here. It will fire on any checkbox change
});
Code: http://jsfiddle.net/s6fe9/
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Best Practice for Exception Handling in a Windows Forms Application?
...ul to add. Do not ever (in C#) do this:
throw ex;
As you will erase the call stack. If you must re-throw (which is occasionally necessary, such as when using the Exception Handling Block of Enterprise Library), use the following:
throw;
At the end of the day, the very vast majority of exceptio...
Convert String to Float in Swift
... {
return (self as NSString).floatValue
}
}
Now you can just call var WageConversion = Wage.text.floatValue and allow the extension to handle the bridge for you!
This is a good implementation since it can handle actual floats (input with .) and will also help prevent the user from cop...
Detect network connection type on Android
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Get an instance of the class ConnectivityManager by calling Context.getSystemService(Context.CONNECTIVITY_SERVICE).
– Ernir Erlingsson
Sep 22 '12 at 18:54
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find all unchecked checkbox in jquery
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Why repeat the guidance already provided years earlier? Furthermore, please never post code-only snippets on SO. All answers should be explained.
– mickmackusa
Jul 17 at 5:19
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Why a function checking if a string is empty always returns true? [closed]
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@cletus: then consider a string $s='0'. If you call empty($s) it will evaluate to true (not intuitive imho, but it is so).
– johndodo
Oct 27 '11 at 8:26
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How to append a char to a std::string?
... It's less typing. In gcc, basic_string::operator+= is just a call in push_back.
– eduffy
Sep 24 '09 at 14:37
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