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Storing sex (gender) in database
...nly supports two possible genders which is inadequate. While INT supports more than two options, it takes 4 bytes -- performance will be better with a smaller/more narrow data type.
CHAR(1) has the edge over TinyINT - both take the same number of bytes, but CHAR provides a more narrow number of ...
What are the best practices for catching and re-throwing exceptions?
...$connect->disconnect(); // we don't want to keep the connection open anymore
throw $e; // but we also don't know how to respond to the failure
}
PHP 5.5 has introduced the finally keyword, so for cleanup scenarios there is now another way to approach this. If the cleanup code needs to run n...
How do I rename the extension for a bunch of files?
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What is the difference between window, screen, and document in Javascript?
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return statement vs exit() in main()
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Actually, there is a difference, but it's subtle. It has more implications for C++, but the differences are important.
When I call return in main(), destructors will be called for my locally scoped objects. If I call exit(), no destructor will be called for my locally scoped objec...
Take a full page screenshot with Firefox on the command-line
...Command+K on macOS)
type :screenshot or :screenshot --fullpage
Find out more regarding screenshots and other features
For Firefox versions < 60:
Press Shift+F2 or go to Tools > Web Developer > Developer Toolbar to open a command line. Write:
screenshot
and press Enter in order to...
Ruby - test for array
...ractice in a language like Ruby. The answer by @zgchurch is clearly a much more idiomatic approach to the question. In cases like this, I think it makes much more sense to try and figure out what the OP means, rather than blindly giving him a shotgun...
– Per Lundberg
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Getting the minimum of two values in SQL
...s probably best for when addressing only two possible values, if there are more than two, consider Craig's answer using Values clause.
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