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CSS center text (horizontally and vertically) inside a div block

...al align". Since they tend to be hacks or adding complicated divs... I usually use a table with a single cell to do it... to make it as simple as possible. Update for 2020: Unless you need make it work on earlier browsers such as Internet Explorer 10, you can use flexbox. It is widely supported...
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Standard alternative to GCC's ##__VA_ARGS__ trick?

... It is possible to avoid the use of GCC's ,##__VA_ARGS__ extension if you are willing to accept some hardcoded upper limit on the number of arguments you can pass to your variadic macro, as described in Richard Hansen's answer to this question. If you do not want to hav...
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How does the @property decorator work in Python?

...is just syntactic sugar; the syntax: @property def foo(self): return self._foo really means the same thing as def foo(self): return self._foo foo = property(foo) so foo the function is replaced by property(foo), which we saw above is a special object. Then when you use @foo.setter(), what you ...
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possible EventEmitter memory leak detected

... I am using process.on('uncaughtException', callback); – Riz Mar 19 '12 at 10:51 ...
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What is the difference between user and kernel modes in operating systems?

... CPU instruction and reference any memory address. Kernel mode is generally reserved for the lowest-level, most trusted functions of the operating system. Crashes in kernel mode are catastrophic; they will halt the entire PC. User Mode In User mode, the executing code has no abili...
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Remove unwanted parts from strings in a column

...place a number such as the number 12? If I do x.lstrip('12') it takes out all 1 and 2s. – Dave Oct 26 '16 at 21:19 add a comment  |  ...
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Reading an Excel file in python using pandas

... Close: first you call ExcelFile, but then you call the .parse method and pass it the sheet name. >>> xl = pd.ExcelFile("dummydata.xlsx") >>> xl.sheet_names [u'Sheet1', u'Sheet2', u'Sheet3'] >>> df = xl.parse("She...
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UITextView style is being reset after setting text property

I have UITextView *_masterText and after call method setText property font is being reset. It's happening after I change sdk 7. _masterText is IBOutlet , global and properties are set in storyboard. It's only me or this is general SDK bug? ...
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Titlecasing a string with exceptions

... Python to titlecase a string (i.e. words start with uppercase characters, all remaining cased characters have lowercase) but leaving articles like and , in , and of lowercased? ...
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Verify version of rabbitmq

...tead on Archlinux - [{rabbit,34362},{rabbitmqctl23794,40359}] though I installed rabbitmq 3.1.3-1 :) – Sian Lerk Lau Dec 3 '13 at 6:18 1 ...