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How to test if list element exists?
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Creating default object from empty value in PHP?
... bool(false)
$res->success = (bool)0; // bool(false)
More infos:
https://www.php.net/manual/en/language.types.object.php#language.types.object.casting
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Configure apache to listen on port other than 80
...apache2 restart
Apache will now listen on port 8079 and redirect to /var/www/html
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Verifying signed git commits?
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An efficient compression algorithm for short text strings [closed]
...by the actual procotol (or use a table to get other common protocols, like https, ftp, file). The "://" can be dropped altogether, as long as you can mark the end of the protocol. Etc. Go read about URL format, and think on how they can be codified to take less space.
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SQL JOIN vs IN performance?
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No Main() in WPF?
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Is it possible only to declare a variable without assigning any value in Python?
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In Python 3.6+ you could use Variable Annotations for this:
https://www.python.org/dev/peps/pep-0526/#abstract
PEP 484 introduced type hints, a.k.a. type annotations. While its main focus was function annotations, it also introduced the notion of type comments to annotate variables:
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How do I change tab size in Vim?
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Delaying a jquery script until everything else has loaded
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