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Visual List of iOS Fonts?
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How do you use variables in a simple PostgreSQL script?
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Took me a while to figure out that in order to use the variable you must not prefix it with a : as with other variables. @achilles-ram-nakirekanti you could add an example using this in a select statement to make this clearer?
– exhuma
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Gunicorn worker timeout error
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Thanks this is the right answer. And then, in order to save resources with many concurrent connections: pip install gevent , then worker_class gevent in your config file or -k gevent on the command line.
– little_birdie
Jan 5 '16 a...
Postgres NOT in array
...&& and @> require both elements to be arrays, which 3 isn't. In order for this to work, the query would need to be written as: SELECT COUNT(*) FROM "messages" WHERE ARRAY[3] && recipient_ids.
– Dologan
Jun 14 '16 at 13:12
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Python - Create a list with initial capacity
...es = [Beer()] * 99
sea = [Fish()] * many
vegetarianPizzas = [None] * peopleOrderingPizzaNotQuiche
[EDIT: Caveat Emptor The [Beer()] * 99 syntax creates one Beer and then populates an array with 99 references to the same single instance]
Python's default approach can be pretty efficient, although ...
UITableView row animation duration and completion callback
...mSelectorOnMainThread:withObject:waitUntilDone:]; in setCompletionBlock in order to call your delegate in next runloop. if you call your delegate directly, without performSelectorOnMainThread, you get old value for tableView.contentSize.
– slamor
Sep 18 '13 at ...
Explicitly select items from a list or tuple
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Maybe a list comprehension is in order:
L = ['a', 'b', 'c', 'd', 'e', 'f']
print [ L[index] for index in [1,3,5] ]
Produces:
['b', 'd', 'f']
Is that what you are looking for?
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Why am I merging “remote-tracking branch 'origin/develop' into develop”?
...before pushing. For example:
git log --graph --oneline --decorate --date-order --color --boundary @{u}..
I prefer this approach over git pull --rebase for the following reasons:
It allows you to see the incoming upstream commits before your modify your history to incorporate them.
It allows y...
How to use ADB to send touch events to device using sendevent command?
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In order to do a particular action (for example to open the web browser), you need to first figure out where to tap. To do that, you can first run:
adb shell getevent -l
Once you press on the device, at the location that you...
Clean ways to write multiple 'for' loops
...ch3d(B, [](double i){ std::cout << i << std::endl; });
}
In order to make it N-ary we need some template magic. First of all we should create SFINAE structure to distinguish whether this value or container. The default implementation for values, and specialisations for arrays and each...