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Batch file. Delete all files and folders in a directory
...reate a batch file
Copy the below text into the batch file
set folder="C:\test"
cd /d %folder%
for /F "delims=" %%i in ('dir /b') do (rmdir "%%i" /s/q || del "%%i" /s/q)
It will delete all files and folders.
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How to remove convexity defects in a Sudoku square?
...sudoku board stands straight, otherwise height/width (or vice versa) ratio test will most probably fail and you will not be able to detect edges of sudoku. (I also want to add that if lines that are not perpendicular to the image borders, sobel operations (dx and dy) will still work as lines will st...
How to get a resource id with a known resource name?
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This is pretty useful in the context of writing tests to make sure certain strings exist or etc.
– Ehtesh Choudhury
May 1 '15 at 22:14
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android on Text Change Listener
... the listener. But that wasn't very elegant.
After doing some research and testing I discovered that using getText().clear() clears the text in much the same way as setText(""), but since it isn't setting the text the listener isn't called, so that solved my problem. I switched all my setText("") ca...
How can I tell if a library was compiled with -g?
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objdump -g gives me nothing for a simple test.o compiled both with and without g, making it effectively useless. Ubuntu 12.04, gcc 4.6.3, GNU objdump 2.22. nm -a seems to be more useful.
– jw013
Sep 20 '13 at 13:49
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Email Address Validation in Android on EditText [duplicate]
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@MPelletier well, I tested it myself, and "a@a." will not pass
– HendraWD
Mar 31 '18 at 13:16
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Is there a way to check if WPF is currently executing in design mode or not?
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Thanks for keeping the answer up to date with latest XAML "applications" like WinRT and WP.
– Sevenate
Nov 12 '13 at 11:01
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Generate random int value from 3 to 6
...he range easily. ABS(CHECKSUM(NEWID()) % (@max - @min + 1)) + @min . A few tests on my part yielded good results. If it's indeed accurate I think this answer could be improved slightly by including it.
– Eilert Hjelmeseth
Mar 23 '19 at 4:54
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Is there a way to get version from package.json in nodejs code?
...he client, as it means that all your dependency version numbers, build and test commands and more are sent to the client.
If you're building server and client in the same project, you expose your server-side version numbers too.
Such specific data can be used by an attacker to better fit the att...
HTML5 textarea placeholder not appearing
... this answer was so straightforward, I didn't believe it to be true! But I tested it out for myself and, sure enough, whitespace inside a textarea is considered content--preventing the placeholder from being displayed.
– Eric L.
Jul 9 '13 at 11:42
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