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List comprehension in Ruby
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If you really want to, you can create an Array#comprehend method like this:
class Array
def comprehend(&block)
return self if block.nil?
self.collect(&block).compact
end
end
some_array = [1, 2, 3, 4, 5, 6]
new_ar...
Difference between acceptance test and functional test?
...ess requirements?
For this type of testing we have test cases that cover all the possible scenarios we can think of, even if that scenario is unlikely to exist "in the real world". When doing this type of testing, we aim for maximum code coverage. We use any test environment we can grab at the tim...
Visual Studio 2013 IntelliSense stops working for ASP.NET MVC5 Controllers
... am facing a weird problem in my Visual Studio 2013 ASP.NET MVC 5 project. All of a sudden, the IntelliSense in the Controller classes of the MVC 5 project are not working at all.
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How do I remove/delete a virtualenv?
...t you are using. virtualenv, venv, Anaconda environment, pyenv, pipenv are all based the same principle here.
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Why Java needs Serializable interface?
...specify Serializable tag on every object we use is kind of a burden. Especially when it's a 3rd-party class that we can't really change.
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How to remove “index.php” in codeigniter's path
... For some reason, if you have index.php in the URL, it's not actually removed, it stays there and keeps working.
– CMCDragonkai
Dec 3 '13 at 8:06
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MySQL Select all columns from one table and some from another table
How do you select all the columns from one table and just some columns from another table using JOIN? In MySQL.
4 Answers
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Where does PHP store the error log? (php5, apache, fastcgi, cpanel)
...oking for is stored (by default) at
/usr/local/apache/logs/error_log
If all else fails you can check the location of the log file using
<?php phpinfo(); ?>
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PreparedStatement IN clause alternatives?
... FROM my_table WHERE search_column = ? ; ... and execute it. [Or use UNION ALL in place of those semicolons. --ed] Requires one prepared statement per size-of-IN-list. Stupidly slow, strictly worse than WHERE search_column IN (?,?,?), so I don't know why the blogger even suggested it.
Use a stored p...
How to clear variables in ipython?
...nd I get bad surprises when variables haven't been cleared. How do I clear all variables?
And is it possible to force this somehow every time I invoke the magic command %run?
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