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Getting the last element of a list
...at should happen when attempting to get an element from an empty list. For Strings astr[-1:] could be a valid approach since it returns the same type as astr[-1], but I don't think the ':' helps to deal with empty lists (and the question is about lists). If the idea is to use "alist[-1:]" as a condi...
Can I have multiple Xcode versions installed?
Is it possible to have more than one version of Xcode installed at the same time?
12 Answers
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IN vs OR in the SQL WHERE Clause
... say you should profile on a specific implementation. I'd imagine that the extra structure of the IN method makes it easier to optimize than a whole bunch of possibly related OR clauses. I'd be surprised if there is an engine where the OR method is faster, but I'm not surprised that there are times ...
How can I use mySQL replace() to replace strings in multiple records?
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At a very generic level
UPDATE MyTable
SET StringColumn = REPLACE (StringColumn, 'SearchForThis', 'ReplaceWithThis')
WHERE SomeOtherColumn LIKE '%PATTERN%'
In your case you say these were escaped but since you don't specify how they were escaped, let's say they wer...
Change SVN repository URL
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Didn't know about the switch command all the documentation I found online is for newer versions.
– Dustin Cook
Feb 10 '16 at 9:54
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Python threading.timer - repeat function every 'n' seconds
... not self.stopped.wait(0.5):
print("my thread")
# call a function
In the code that started the timer, you can then set the stopped event to stop the timer.
stopFlag = Event()
thread = MyThread(stopFlag)
thread.start()
# this will stop the timer
stopFlag.set()
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Can Protractor and Karma be used together?
... additional files or files irrelevant to your project, only providing some extra configuration - you name it!
You can have multiple karma config files for different purposes, which you can run in parallel or one-by-one. Each karma process launches its own set of browsers (these are currently avail...
How do I get the full url of the page I am on in C#
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I usually use Request.Url.ToString() to get the full url (including querystring), no concatenation required.
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How to get current timestamp in milliseconds since 1970 just the way Java gets
...e UNIX epoch, but the spec only says it must be the system-wide real time wall clock. There is no requirement for the steady_clock to match reality, only that it only move forward.
– Oz.
Jul 27 '15 at 23:22
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Twitter image encoding challenge [closed]
... handling. It also requires the GMP library for bignum arithmetic for its string encoding.
I based my solution off of fractal image compression, with a few unique twists. The basic idea is to take the image, scale down a copy to 50% and look for pieces in various orientations that look similar to...