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How do you add a Dictionary of items into another Dictionary
...alue(value, forKey:key)
}
}
}
dict1.update(dict2)
// dict1 is now ["a" : "foo", "b" : "bar]
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How do I create a unique constraint that also allows nulls?
...won't let me store NULLs in a unique column in the first place. If anyone knows a solution for that, please post it here
– dotNET
Feb 2 '15 at 22:01
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How to use the 'og' (Open Graph) meta tag for Facebook share
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Do you know if the author tag should have the author name, or a link to a profile URL?
– tobek
Feb 4 '14 at 19:57
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How do I prevent node.js from crashing? try-catch doesn't work
...sn't work either since everything is done asynchronously. I would like to know what does everyone else do in their production servers.
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What is the purpose of the “Prefer 32-bit” setting in Visual Studio and how does it actually work?
...T projects is again AnyCPU, but there is more than
one meaning to AnyCPU now. There is an additional sub-type of AnyCPU,
“Any CPU 32-bit preferred”, which is the new default (overall, there
are now five options for the /platform C# compiler switch: x86,
Itanium, x64, anycpu, and anycpu32...
Fastest way to convert JavaScript NodeList to Array?
... They Are a-Changin'
@kangax (IE 9 preview)
Array.prototype.slice can now convert
certain host objects (e.g. NodeList’s)
to arrays — something that majority of
modern browsers have been able to do
for quite a while.
Example:
Array.prototype.slice.call(document.childNodes);
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How to calculate the angle between a line and the horizontal axis?
...aX*deltaX+deltaY*deltaY)), unless the length is 0.
After that, deltaX will now be the cosine of the angle between the vector and the horizontal axis (in the direction from the positive X to the positive Y axis at P1).
And deltaY will now be the sine of that angle.
If the vector's length is 0, it won...
const char * const versus const char *?
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(I know this is old but I wanted to share anyway.)
Just wanted to elaborate on Thomas Matthews' answer. The Right-Left Rule of C type declarations pretty much says: when reading a C type declaration start at the identifier and g...
How to know what the 'errno' means?
...en calling execl(...) , I get an errno=2 . What does it mean? How can I know the meaning of this errno ?
15 Answers
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What's the pythonic way to use getters and setters?
...ute
#
@attribute.setter # the property decorates with `.setter` now
def attribute(self, value): # name, e.g. "attribute", is the same
self._attribute = value # the "value" name isn't special
#
@attribute.deleter # decorate with `.deleter`
def attribute(self...