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What do I return if the return type of a method is Void? (Not void!)
... a function has to be Void?
Use return null. Void can't be instantiated and is merely a placeholder for the Class<T> type of void.
What's the point of Void?
As noted above, it's a placeholder. Void is what you'll get back if you, for example, use reflection to look at a method with a ...
What do the terms “CPU bound” and “I/O bound” mean?
What do the terms "CPU bound" and "I/O bound" mean?
11 Answers
11
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How to change a django QueryDict to Python Dict?
...nswered Nov 12 '12 at 18:57
Alexandre VassalottiAlexandre Vassalotti
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How to TryParse for Enum value?
...erything.
If you are using bitfield enums (i.e. flags), you also have to handle a string like "MyEnum.Val1|MyEnum.Val2" which is a combination of two enum values. If you just call Enum.IsDefined with this string, it will return false, even though Enum.Parse handles it correctly.
Update
As mention...
Javascript Reduce an empty array
...e the array, I am trying to get the number zero, but I dont clearly understand the behaviour of the function
2 Answers
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I need to securely store a username and password in Python, what are my options?
...ll periodically pull information from a 3rd party service using a username and password combo. I don't need to create something that is 100% bulletproof (does 100% even exist?), but I would like to involve a good measure of security so at the very least it would take a long time for someone to break...
CMake: Print out all accessible variables in a script
...ty function, the following loop will print out all CMake variables defined and their values:
get_cmake_property(_variableNames VARIABLES)
list (SORT _variableNames)
foreach (_variableName ${_variableNames})
message(STATUS "${_variableName}=${${_variableName}}")
endforeach()
This can also be e...
Check difference in seconds between two times
...
Assuming dateTime1 and dateTime2 are DateTime values:
var diffInSeconds = (dateTime1 - dateTime2).TotalSeconds;
In your case, you 'd use DateTime.Now as one of the values and the time in the list as the other. Be careful of the order, as the...
tooltips for Button
...ossible to create a tooltip for an html button. Its the normal HTML button and there is no Title attribute as it is there for some html controls. Any thoughts or comments?
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How do I copy a file in Python?
...sts, it will be replaced.
Special files such as character or block devices and pipes cannot be copied with this function.
With copy, src and dst are path names given as strings.
If you use os.path operations, use copy rather than copyfile. copyfile will only accept strings.
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