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How does having a dynamic variable affect performance?
... how this works so far? We generate the call site once, no matter how many times you call M. The call site lives forever after you generate it once. The call site is an object that represents "there's going to be a dynamic call to Foo here".
OK, so now that you've got the call site, how does the in...
Difference between View and table in sql
...eries on it.
Instead of sending the complex query to the database all the time, you can save the query as a view and then SELECT * FROM view
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How to deny access to a file in .htaccess
I have the following .htaccess file:
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is_null($x) vs $x === null in PHP [duplicate]
...et($undefinedVar) will not throw a notice.
Also note that isset() may sometimes return true even though the value is null - this is the case when it is used on an overloaded object, i.e. if the object defines an offsetExists/__isset method that returns true even if the offset is null (this is actua...
Is there a visual profiler for Python? [closed]
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I'm only aware of RunSnakeRun.
There was also some talk some time ago about an integrated profiler in PyDev (Eclipse), but I don't know if that will ever see the light of day.
Update: Unfortunately it seems that RunSnakeRun is no longer maintained, and it does not support Python 3.
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How to verify that a specific method was not called using Mockito?
...ifyNoInteractions is the suggested a alternative. Mockito version at the time of this comment is 3.3.3
– VKB
Apr 29 at 17:51
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Generating random integer from a range
... Does it really return a correct number within range 100% of the time? I've found some other stackoverflow answer here that is using recursion to do it "the right way": stackoverflow.com/a/6852396/623622
– Czarek Tomczak
Jan 25 '14 at 11:07
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Ignore .pyc files in git repository
How can I ignore .pyc files in git?
6 Answers
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Why is a div with “display: table-cell;” not affected by margin?
I have div elements next to each other with display: table-cell; .
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Summarizing multiple columns with dplyr? [duplicate]
I'm struggling a bit with the dplyr-syntax. I have a data frame with different variables and one grouping variable. Now I want to calculate the mean for each column within each group, using dplyr in R.
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