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ReactJS Two components communicating
... scenario 3, is there a recommended approach? Any docs or examples on this by generating custom synthetic events? I have not found anything in the main docs.
– pwray
Jan 24 '14 at 11:23
...
How to determine the memory footprint (size) of a variable?
...oogle gperftools (recommended!)
First of all install the Google gperftools by downloading the latest package here: https://code.google.com/p/gperftools/
Then as always:
sudo apt-get update
sudo apt-get install libunwind-dev -y
./configure
make
make install
Now in your code:
memprof_enable();
// do...
Show dialog from fragment?
... now the preferred method. You can avoid referencing the Activity entirely by using the putFragment and getFragment methods of FragmentManager, allowing the DialogFragment to report back directly to the calling fragment (even after orientation changes).
– Dave
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Execute Python script via crontab
...point in the tutorial that explains that using "/1" might not be supported by all operating systems. What operating system are you running this on?
– Raul Marengo
Jan 4 '12 at 14:02
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RegEx for matching UK Postcodes
... slightly, as a P character in third position in format A9A 9AA is allowed by the definition given.
The RegEx supplied by the UK Government was:
([Gg][Ii][Rr] 0[Aa]{2})|((([A-Za-z][0-9]{1,2})|(([A-Za-z][A-Ha-hJ-Yj-y][0-9]{1,2})|(([A-Za-z][0-9][A-Za-z])|([A-Za-z][A-Ha-hJ-Yj-y][0-9][A-Za-z]?))))\s?[...
Quickest way to convert a base 10 number to any base in .NET?
...le.WriteLine(binary); // prints 101
However, as pointed out by the comments, Convert.ToString only supports the following limited - but typically sufficient - set of bases: 2, 8, 10, or 16.
Update (to meet the requirement to convert to any base):
I'm not aware of any method in the ...
Create a dictionary on a list with grouping
...lVariableWhichIsAListOfDemoClass
group demoClass by demoClass.GroupKey
into groupedDemoClass
select groupedDemoClass).ToDictionary(gdc => gdc.Key, gdc => gdc.ToList());
This one will work !!!
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How can I remove a key and its value from an associative array?
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Here is a link to a solution that illustrates the comment by @FreeAsInBeer link with respect to the ampersand.
– Danimal Reks
Jun 4 '19 at 21:52
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MySQL error 1449: The user specified as a definer does not exist
... is possibly easiest to do when initially importing your database objects, by removing any DEFINER statements from the dump.
Changing the definer later is a more little tricky:
How to change the definer for views
Run this SQL to generate the necessary ALTER statements
SELECT CONCAT("ALTER DEFIN...
Delete file from internal storage
...
@user661543 What's full path returned by the ih.getImgPath()? What you'd passed as an argument to delete file? If the method above didn't work then most likely stored your file out of application package. Or you might have passed wrong file name as an argument.
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