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How can I escape square brackets in a LIKE clause?
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Prefer LIKE 'WC\[R]S123456' ESCAPE '\' as it is more readable for maintenance.
– Fire Druid
Dec 5 '19 at 13:10
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Which regular expression operator means 'Don't' match this character?
...rators, and always follow a matching operator. Thus, a+ means match one or more of a, [a-c0]+ means match one or more of a, b, c or 0, while [^a-c0]+ would match one or more of anything that wasn't a, b, c or 0.
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Is there an equivalent to CTRL+C in IPython Notebook in Firefox to break cells that are running?
... that hitting CTRL+C would do. Some processes within python handle SIGINTs more abruptly than others.
If you desperately need to stop something that is running in iPython Notebook and you started iPython Notebook from a terminal, you can hit CTRL+C twice in that terminal to interrupt the entire iP...
Any reason not to use '+' to concatenate two strings?
...ier to read than ''.join([a, b]).
You are right though that concatenating more than 2 strings with + is an O(n^2) operation (compared to O(n) for join) and thus becomes inefficient. However this has not to do with using a loop. Even a + b + c + ... is O(n^2), the reason being that each concatenatio...
How to make CSS width to fill parent?
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@Dimitry: No they have special rules that render them more like inline-block than block elements. Note though that i said more like not same as :-) What youre probably experiencing is that unless otherwise defined they will generally expand to accommodate all the columns which c...
Check if all values of array are equal
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Why does MYSQL higher LIMIT offset slow the query down?
Scenario in short: A table with more than 16 million records [2GB in size]. The higher LIMIT offset with SELECT, the slower the query becomes, when using ORDER BY *primary_key*
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Making a private method public to unit test it…good idea?
...whether or not you can add something meaningful to the discussion. You're more than likely just repeating what someone else has already said.
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When should I use C++ private inheritance?
...template friends right. But in any case your non-template solution is much more awesome :)
– j_random_hacker
Mar 18 '09 at 8:36
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Replace all non-alphanumeric characters in a string
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If doing more than one replace, this will perform slightly quicker if you pre-compile the regex, e.g., import re; regex = re.compile('[^0-9a-zA-Z]+'); regex.sub('*', 'h^&ell.,|o w]{+orld')
– Chris
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