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What is the volatile keyword useful for?

... volatile has semantics for memory visibility. Basically, the value of a volatile field becomes visible to all readers (other threads in particular) after a write operation completes on it. Without volatile, readers could see some non-updated value. To answer your question: Y...
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Detect Safari browser

...rAgent); It uses negative look-arounds and it excludes Chrome, Edge, and all Android browsers that include the Safari name in their user agent. share | improve this answer | ...
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Relative paths in Python

..., you want to do something like this: import os dirname = os.path.dirname(__file__) filename = os.path.join(dirname, 'relative/path/to/file/you/want') This will give you the absolute path to the file you're looking for. Note that if you're using setuptools, you should probably use its package re...
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How can you get the Manifest Version number from the App's (Layout) XML variables?

...ntext.getPackageName(), 0).versionName; Either of these solutions would allow for placing the version name in XML. Unfortunately there isn't a nice simple solution, like android.R.string.version or something like that. sh...
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php $_POST array empty upon form submission

... "WWW." The $_POST array was getting emptied in the process. So to fix it all I had to do was submit to www.domain.com share | improve this answer | follow | ...
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UITableView load more when scrolling to bottom like Facebook application

...thIdentifier:cellIdentifier]; if (!cell) { cell = [[MyCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:MainMenuCellIdentifier]; } MyData *data = [self.dataArray objectAtIndex:indexPath.row]; // Do your cell customisation // cell.titleLabel.text =...
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How can I generate a unique ID in Python? [duplicate]

...in newer versions, but most people probably don't have that yet, so I generally avoid this module. Caused me major headaches with listen sockets... – Glenn Maynard Jul 31 '09 at 3:14 ...
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Concurrent.futures vs Multiprocessing in Python 3

... I wouldn't call concurrent.futures more "advanced" - it's a simpler interface that works very much the same regardless of whether you use multiple threads or multiple processes as the underlying parallelization gimmick. So, like virtuall...
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How to convert all tables from MyISAM into InnoDB?

I know I can issue an alter table individually to change the table storage from MyISAM to InnoDB. 26 Answers ...
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How do I get the base URL with PHP?

... XAMPP on Windows Vista. In my development, I have http://127.0.0.1/test_website/ . 22 Answers ...