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How to get the nth element of a python list or a default if not available
... why it may be better to use try/except, than to try to correctly code the test so it never fails. I still don't like to rely on try/except, for a case that I know will happen, but this increases my willingness to consider it.
– ToolmakerSteve
Dec 15 '13 at 3:2...
Is it possible to animate scrollTop with jQuery?
...(Might not work for overflow-y:hidden, and overflow:hidden, but I have not tested.
– collinhaines
Jun 9 '15 at 15:02
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Remove trailing zeros
...atch out for values like 0.000001. G29 format will present them in the shortest possible way so it will switch to the exponential notation. string.Format("{0:G29}", decimal.Parse("0.00000001",System.Globalization.CultureInfo.GetCultureInfo("en-US"))) will give "1E-08" as the result.
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How does !!~ (not not tilde/bang bang tilde) alter the result of a 'contains/included' Array method
...89934591 evaluates to false so this abomination cannot be reliably used to test for -1.
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What are the uses for Cross Join?
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Generate data for testing.
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How to print an exception in Python?
...ception was thrown!
Traceback (most recent call last):
File ".../Desktop/test.py", line 4, in <module>
1/0
ZeroDivisionError: division by zero
Notes:
the function logging.exception() should only be called from an exception handler
the logging module should not be used inside a loggi...
How can I delete a service in Windows?
...Microsoft\Windows\CurrentVersion\Installer\Folders
These steps have been tested on Windows XP, Windows 7, Windows Vista, Windows Server 2003, and Windows Server 2008.
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How do I choose between Tesseract and OpenCV? [closed]
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Regarding your question, I was just testing out some random input images yesterday. I tried a receipt from a gas station: upload.wikimedia.org/wikipedia/en/3/34/… It recognized the 0 as an 8 (in the total of $20.00). I admit that digit was hard even for my to...
Most efficient way to convert an HTMLCollection to an Array
... new, undefined members in sparse arrays. There should be a hasOwnProperty test before the assignment.
– RobG
Jan 4 '16 at 9:49
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Regular Expression for alphanumeric and underscores
... can be 0-9, A-Z, a-z, or underscore (_).
Here is how you would do that:
Tested under php:
$regex = '/^[A-Za-z_][A-Za-z\d_]*$/'
or take this
^[A-Za-z_][A-Za-z\d_]*$
and place it in your development language.
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