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Using emit vs calling a signal as if it's a regular function in Qt
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Do you know if there was ever an implementation (or a planned implementation) of an emit that actually did more than nothing? I find that having the 'syntactic sugar' in this case just confuses the novice (or at least me when I was ...
How to remove a file from version control without deleting it?
...it. But at that point, when they have already overwritten the settings and now get an svn "rm" on update, it actually removes the potentially-vital local settings file from their system, while it should just be unversioned so it can be configured to local settings again.
– Nyer...
Can we have multiple in same ?
...ntal "yes, multiple tbody elements are fine) remains. Specifically, you're now allowed to put the one tfoot element after the tbody if you like. (They neatly side-stepped the DTD aspect by saying they don't provide one.) :-)
– T.J. Crowder
Jul 11 '13 at 17:51
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What is the difference between a string and a byte string?
...quite a lot of these (and infinitely many are possible) - and you need to know which applies in the particular case in order to do the conversion, since a different encoding may map the same bytes to a different string:
>>> b'\xcf\x84o\xcf\x81\xce\xbdo\xcf\x82'.decode('utf-16')
'蓏콯캁...
How to save as a new file and keep working on the original one in Vim?
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Thanks for the answers. Now I know that there are two ways of "SAVE AS" in Vim.
Assumed that I'm editing hello.txt.
:w world.txt will write hello.txt's content to the file world.txt while keeping hello.txt as the opened buffer in vim.
:sav world...
What does addChildViewController actually do?
...ldViewControllers relationships. Here are some of the side effects that I know:
Forwarding appearance methods to child view controllers
Forwarding rotation methods
(Possibly) forwarding memory warnings
Avoiding inconsistent VC hierarchies, especially in transitionFromViewController:toViewControlle...
Why is not in HTML 5 Tag list while is?
...hy it wasn't, not that I agree with it. From the docs: "The small element now represents small print (for side comments and legal print)." dev.w3.org/html5/html4-differences
– Nick Craver♦
Feb 14 '10 at 3:40
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F# development and unit testing?
...ange in the process of writing code. I have been using TDD for years in C# now, and really appreciate to have unit tests to know where I am at.
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Assign pandas dataframe column dtypes
...number":"int64",
"car_name":"object","minutes_spent":"float64"})
now you can see that it's changed
In [18]: data_df.dtypes
Out[18]:
wheel_number int64
car_name object
minutes_spent float64
share...
Generating an Excel file in ASP.NET [closed]
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Cons:
Limited compatibility outside Excel 2007 (shouldn't be a problem nowadays)
Complicated unless you're using a third party component
SpreadSheetML (open format XML)
Pros:
Simple compared to native Excel formats
Supports most Excel features: formating, styles, formulas, multiple sheets ...