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How can I print each command before executing? [duplicate]
...at is the best way to set up a Bash script that prints each command before it executes it?
4 Answers
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Autoresizing masks programmatically vs Interface Builder / xib / nib
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Yes, Interface Builder has it "reversed" in a sense (or UIView, depending on how you look at it). Your cited "scenarios" are correct.
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Why doesn't calling a Python string method do anything unless you assign its output?
I try to do a simple string replacement, but I don't know why it doesn't seem to work:
2 Answers
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Visual Studio 2013 Missing Convert To Web Application
...pplication which still has legacy code from Framework 1 (would you believe it), currently on Framework 4.0.
3 Answers
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What's faster, SELECT DISTINCT or GROUP BY in MySQL?
...e databases implement DISTINCT under the hood).
If one of them is faster, it's going to be DISTINCT. This is because, although the two are the same, a query optimizer would have to catch the fact that your GROUP BY is not taking advantage of any group members, just their keys. DISTINCT makes this ...
How to remove “index.php” in codeigniter's path
How do I remove the "index.php" sticking out in every path in codeigniter somewhere in the center?
I want clean non index.php-fied URLs ?
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Using str_replace so that it only acts on the first match?
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Can be done with preg_replace:
function str_replace_first($from, $to, $content)
{
$from = '/'.preg_quote($from, '/').'/';
return preg_replace($from, $to, $content, 1);
}
echo str_replace_first('abc', '123', 'abcdef abcdef abcde...
Comment the interface, implementation or both?
...s a general rule, I use the same DRY (Don't Repeat Yourself) principle as with code:
on interface, document the interface
on implementation, document the implementation specifics
Java specific: when documenting the implementation, use {@inheritDoc} tag to "include" javadocs from the interface.
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Accept server's self-signed ssl certificate in Java client
It looks like a standard question, but I couldn't find clear directions anywhere.
12 Answers
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No Persistence provider for EntityManager named
I have my persistence.xml with the same name using TopLink under the META-INF directory.
Then, I have my code calling it with:
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