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Determining type of an object in ruby
...n as an example of what I'm looking for (you can think of it as pseudocode if you don't know Python):
5 Answers
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How do I break a string across more than one line of code in JavaScript?
... quotes), line breaks are ignored, and perfectly acceptable. For example:
if(SuperLongConditionWhyIsThisSoLong
&& SuperLongConditionOnAnotherLine
&& SuperLongConditionOnThirdLineSheesh)
{
// launch_missiles();
}
...
Merge multiple lines (two blocks) in Vim
...s of lines in Vim, i.e. take lines n..m and append them to lines a..b . If you prefer a pseudocode explanation: [a[i] + b[i] for i in min(len(a), len(b))]
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SQL “select where not in subquery” returns no results
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Update:
These articles in my blog describe the differences between the methods in more detail:
NOT IN vs. NOT EXISTS vs. LEFT JOIN / IS NULL: SQL Server
NOT IN vs. NOT EXISTS vs. LEFT JOIN / IS NULL: PostgreSQL
NOT IN vs. NOT EXISTS vs. LEFT JOIN / IS NULL: Oracle
NOT IN...
How to print full stack trace in exception?
...o it and here it is. Some little concern is it is not as much explicit as if you use exception.StackTrace object (for example). I wonder if there is a more explicit way to do the same?
– codea
May 7 '14 at 16:29
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Hide all warnings in ipython
...ers, I want to disable all warnings emitted by warnings.warn calls from different packages. Is there a way to configure the ipythonrc file to automatically disable all such warnings?
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JavaScript % (modulo) gives a negative result for negative numbers
... The modulo operation is not very well defined over negative numbers, and different computing environments handle it differently. Wikipedia's article on the modulo operation covers it pretty well.
– Daniel Pryden
Dec 17 '10 at 4:08
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Regular expression for exact match of a string
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if you have a the input password in a variable and you want to match exactly 123456 then anchors will help you:
/^123456$/
in perl the test for matching the password would be something like
print "MATCH_OK" if ($input_pas...
How can I round a number in JavaScript? .toFixed() returns a string?
...le purpose of converting a number to a string, formatting it using the specified number of decimals. The reason it returns a string is because it's supposed to return a string, and if it was named toStringFixed instead, OP wouldn't be surprised at the results. The only issue here is that OP expected...
Why does MYSQL higher LIMIT offset slow the query down?
...The query cannot go right to OFFSET because, first, the records can be of different length, and, second, there can be gaps from deleted records. It needs to check and count each record on its way.
Assuming that id is a PRIMARY KEY of a MyISAM table, you can speed it up by using this trick:
SELECT ...