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How can I find the number of days between two Date objects in Ruby?
...subtracting two Date objects gives you a Rational that you may need to typecast into an integer, as with (endDate - beginDate).to_i
– MusikAnimal
Jun 24 '15 at 4:17
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Intellij IDEA crashed, and now throws an error
... turn off my computer. (long click power button) When I turned on computer and start IntelliJ IDEA I had this error:
10 Ans...
Windows shell command to get the full path to the current directory?
Is there a Windows command line command that I can use to get the full path to the current working directory?
14 Answers
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Remove/hide a preference from the screen
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I just got the Category as a Preference, no cast, and removed it. Worked.
– Rob
Apr 3 '15 at 1:14
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get list of pandas dataframe columns based on data type
... mean it's not working, that actually means your DataFrame columns weren't cast to the type you think they should be, which can happen for a variety of reasons.
– Marc
Sep 5 '17 at 13:56
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Get object by id()? [duplicate]
... this can be done by ctypes:
import ctypes
a = "hello world"
print ctypes.cast(id(a), ctypes.py_object).value
output:
hello world
If you don't know whether the object is still there, this is a recipe for undefined behavior and weird crashes or worse, so be careful.
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Keyboard shortcut to comment lines in Sublime Text 3
...it was possible to comment out a line or a block of lines with Ctrl + / and Ctrl + Shift + / . According to the menu Edit > Comment these shortcuts should be valid, but in Sublime Text 3 (build 3047) they no longer seem to work. Does anybody know the right default keyboard shortcuts for Lin...
Detect iPad Mini in HTML5
...Script, the window.navigator object exposes the same values for the Mini and iPad 2. My tests so far to detect the difference have not lead to success.
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Function Pointers in Java
...object2, "getClass");
Of course, check all exceptions and add the needed casts.
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How can I do DNS lookups in Python, including referring to /etc/hosts?
...for the late comment: the result may be cached by the local resolver. nscd and nslcd on Unix boxes can do this. It could also be cached by a local name server configured for caching (a common setup, once upon a time. Probably not so much now). It's not a straightforward ‘no’ answer, unfortunatel...