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编译失败！ Error: Your build failed due to an error in the AAPT stage,...
...tivity> attribute name has invalid character
[java] /tmp/1685410160630_0.39828964915976717-0/youngandroidproject/../build/AndroidManifest.xml:5: Tag <activity> attribute name has invalid character '�'.
[java] May 30, 2023 9:29:27 AM com.google.appinventor.build...
Guaranteed lifetime of temporary in C++?
...or the lifetime of a temporary variable that is created within a function call but not used as a parameter? Here's an example class:
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Check if a Windows service exists and delete in PowerShell
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edited Sep 2 '18 at 6:16
Thomas
2,07322 gold badges2323 silver badges2424 bronze badges
answered Feb...
Regex, every non-alphanumeric character except white space or colon
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[^a-zA-Z\d\s:]
\d - numeric class
\s - whitespace
a-zA-Z - matches all the letters
^ - negates them all - so you get - non numeric chars, non spaces and non colons
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How to access component methods from “outside” in ReactJS?
...nged example to use a class and createRef per latest React docs.
Update 2016-09-19: Changed example to use ref callback per guidance from the ref String attribute docs.
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Min/Max-value validators in asp.net mvc
...e validation.
– Johnie Karr
May 24 '16 at 21:27
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Getting current device language in iOS?
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The solutions provided will actually return the current region of the device - not the currently selected language. These are often one and the same. However, if I am in North America and I set my language to Japanese, my region will still be English (Unite...
Remove excess whitespace from within a string
I receive a string from a database query, then I remove all HTML tags, carriage returns and newlines before I put it in a CSV file. Only thing is, I can't find a way to remove the excess white space from between the strings.
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UICollectionView reloadData not functioning properly in iOS 7
...nd probing. I feel this is an iOS 7 bug. Forcing the main thread will run all UIKit related messages. I seem to run into this when popping to the view from another view controller. I refresh the data on viewWillAppear. I could see the data and collection view reload call, but the UI was not updat...
What is mattr_accessor in a Rails module?
I couldn't really find this in Rails documentation but it seems like 'mattr_accessor' is the Module corollary for 'attr_accessor' (getter & setter) in a normal Ruby class .
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