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When should I use perror(“…”) and fprintf(stderr, “…”)?
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One detail, strerror is not required to be thread-safe. It's stupid, but that's the standard. strerror_l can be used instead as a drop-in replacement on POSIX 2008 systems. strerror_r is also available on older systems but ha...
Python hashable dicts
... of the __key method (in practice either approach should work, though this one might be slowed down by making an unneeded itermediate list -- fixable by s/items/iteritems/ -- assuming Python 2.* as you don't say;-).
– Alex Martelli
Jul 20 '09 at 4:48
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When should one use final for method parameters and local variables?
...the code more difficult to understand with finals all over. If I'm in someone else's code, I'm not going to pull them out but if I'm writing new code I won't put them in. One exception is the case where you have to mark something final so you can access it from within an anonymous inner class.
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Best practice for Django project working directory structure
...n my ~/projects/ directory, both have a bit different structure.:
Stand-alone websites
Pluggable applications
Stand-alone website
Mostly private projects, but doesn't have to be. It usually looks like this:
~/projects/project_name/
docs/ # documentation
scripts/
manage.py ...
Calling dynamic function with dynamic number of parameters [duplicate]
...red Mar 24 '09 at 9:55
AnthonyWJonesAnthonyWJones
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How do I make a delay in Java?
... java.util.concurrent.TimeUnit:
TimeUnit.SECONDS.sleep(1);
To sleep for one second or
TimeUnit.MINUTES.sleep(1);
To sleep for a minute.
As this is a loop, this presents an inherent problem - drift. Every time you run code and then sleep you will be drifting a little bit from running, say, eve...
PDO Prepared Inserts multiple rows in single query
...ently using this type of SQL on MySQL to insert multiple rows of values in one single query:
22 Answers
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Capybara Ambiguity Resolution
...xample select element by id, class or other css/xpath locator so that only one element will match it.
As a note here are some locators that I usually consider useful when resolving ambiguity:
find('ul > li:first-child')
It's more useful than first('ul > li') as it will wait till first li...
How to diff a commit with its parent?
...sion ranges, where it needs to work also for merge commits, with more than one parent. Then r1^! is "r1 --not r1^@" i.e. "r1 ^r1^1 ^r1^2 ..."
Also, you can use git show COMMIT to get commit description and diff for a commit. If you want only diff, you can use git diff-tree -p COMMIT
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How can I get the timezone name in JavaScript?
I know how to get the timezone offset, but what I need is the ability to detect something like "America/New York." Is that even possible from JavaScript or is that something I am going to have to guestimate based on the offset?
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