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Django - limiting query results
...s are lazy. That means a query will hit the database only when you specifically ask for the result.
So until you print or actually use the result of a query you can filter further with no database access.
As you can see below your code only executes one sql query to fetch only the last 10 items.
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What are free monads?
...r monad, and the second one gives you a way to "get out" of it.
More generally, if X is a Y with some extra stuff P, then a "free X" is a a way of getting from a Y to an X without gaining anything extra.
Examples: a monoid (X) is a set (Y) with extra structure (P) that basically says it has an ope...
How do I pass a unique_ptr argument to a constructor or a function?
...e_ptr<Base> n)
: next(std::move(n)) {}
In order for the user to call this, they must do one of the following:
Base newBase(std::move(nextBase));
Base fromTemp(std::unique_ptr<Base>(new Base(...));
To take a unique pointer by value means that you are transferring ownership of the p...
Post Build exited with code 1
... a fine solution since we can see the log for actual issue if anything actually occurs.
– Naveen Kumar V
Sep 2 at 15:46
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“Unsafe JavaScript attempt to access frame with URL…” error being continuously generated in Chrome w
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You could allow cross-domain requests during testing by running chrome with the --disable-web-security command line option. This should probably get rid of the error (and allow FB to spy on your testing ;)
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Which letter of the English alphabet takes up most pixels?
...n 'Arial Black' on my MacBook in Chrome, lowercase m is the widest, by a small margin.
– Earl Jenkins
Feb 14 '12 at 22:25
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Installing PG gem on OS X - failure to build native extension
It seems many others have had problems installing the pg gem. None of the solutions posed for others have worked for me.
1...
How can I remove an element from a list, with lodash?
...eturn an element if the predicate is true. Your implementation will return all unwanted elements instead of those you want to keep
– Xeltor
Jun 14 '17 at 19:26
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Check for installed packages before running install.packages() [duplicate]
...h several users on different computers. One of its lines contains the install.packages("xtable") command.
16 Answers
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Best way to hide a window from the Alt-Tab program switcher?
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go with the sample code above and make the window a child window of a small hidden tool window
modify the window style to also include the WS_EX_TOOLWINDOW extended style.
I personally prefer the second approach. Then again, I do some advanced stuff like extending the glass in the client area an...