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PHP check whether property exists in object or class
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edited Mar 15 at 15:51
Abel Callejo
9,05577 gold badges4444 silver badges6262 bronze badges
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What does “program to interfaces, not implementations” mean?
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152
Interfaces are just contracts or signatures and they don't know
anything about implementat...
FileNotFoundException while getting the InputStream object from HttpURLConnection
...rvice and their special meaning, if any.
If the status starts with 4nn or 5nn, you'd like to use getErrorStream() instead to read the response body which may contain the error details.
InputStream error = con.getErrorStream();
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Python's equivalent of && (logical-and) in an if-statement
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1529
You would want and instead of &&.
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On select change, get data attribute value
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656
You need to find the selected option:
$(this).find(':selected').data('id')
or
$(this).find(...
Maximum length for MD5 input/output
What is the maximum length of the string that can have md5 hashed? Or: If it has no limit, and if so what will be the max length of the md5 output value?
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Purpose of Python's __repr__
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edited Nov 4 '14 at 5:01
answered Dec 31 '09 at 6:12
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Haskell Type vs Data Constructor
...y RGB to three values, we get a colour value!
Prelude> RGB 12 92 27
#0c5c1b
We have constructed a value of type Colour by applying the data constructor. A data constructor either contains a value like a variable would, or takes other values as its argument and creates a new value. If you have ...
NUnit vs. MbUnit vs. MSTest vs. xUnit.net [closed]
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edited May 6 '19 at 18:55
clows
24255 silver badges1111 bronze badges
answered Jun 5 '09 at 20:18
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How to rethrow InnerException without losing stack trace in C#?
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In .NET 4.5 there is now the ExceptionDispatchInfo class.
This lets you capture an exception and re-throw it without changing the stack-trace:
try
{
task.Wait();
}
catch(AggregateException ex)
{
ExceptionDispatchInfo.Capture(...