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Why does ConcurrentHashMap prevent null keys and values?
...eature, which wasn't available back then (Java 5). You could use Optionals now, indeed.
– Bruno
Sep 18 '18 at 15:02
@A...
How do you move a file?
...is doesn't seem like it worked correctly. I'm afraid to commit it without knowing if this is the way it's supposed to work or not
– Joe Phillips
Jul 12 '11 at 21:44
48
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How to use concerns in Rails 4
The default Rails 4 project generator now creates the directory "concerns" under controllers and models. I have found some explanations about how to use routing concerns, but nothing about controllers or models.
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How to prevent page scrolling when scrolling a DIV element?
...;& e.preventDefault();
});
Inside the event handler, you'll need to know:
scrolling direction
d = e.originalEvent.deltaY, dir = d < 0 ? 'up' : 'down'
because a positive number means scrolling down
scroll position
scrollTop for top, scrollHeight - scrollTop - offsetHeight for bottom
If y...
PHP - include a php file and also send query parameters
...ve and so on
$$qstr_name = $qstr_value;
}
}
// now it's time to include the real php file
// all necessary variables are already defined and will be in the same scope of included file
include($phpinclude);
}
?>
I'm using this variable variable construction v...
Allowed memory size of 33554432 bytes exhausted (tried to allocate 43148176 bytes) in php
...emory at any random time during code execution. This had the upside of me now having the world's most memory efficient code, created in the hunt for a memory leak.
– Kris Selbekk
Oct 15 '13 at 18:13
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In Unix, how do you remove everything in the current directory and below it?
I know this will delete everything in a subdirectory and below it:
10 Answers
10
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I change the capitalization of a directory and Git doesn't seem to pick up on it
...
for some reason it duplicated all the files, now I have both the original versions and the ones with capitalization changed...
– Salatiel
Apr 1 at 1:49
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Search all the occurrences of a string in the entire project in Android Studio
I've just started using Android Studio (IntelliJ), and I now look for the feature to find the occurrence of a string in any of the files in my project. For example: I want to find all the files that contain the string " .getUuid() "
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UILabel - auto-size label to fit text?
...
@Zeezer do you know why?
– FurloSK
Jul 15 '15 at 10:10
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