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Remove unwanted parts from strings in a column
...hes are a possibility, you will need to re-write the above to include some error checking. I do this using a function.
def try_extract(pattern, string):
try:
m = pattern.search(string)
return m.group(0)
except (TypeError, ValueError, AttributeError):
return np.nan
p...
Formatting a number with exactly two decimals in JavaScript
...decimals:
(Math.round(num*100)/100).toFixed(2)
If this causes rounding errors, you can use the following as James has explained in his comment:
(Math.round((num * 1000)/10)/100).toFixed(2)
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Why use try {} finally {} with an empty try block?
...ead is aborted.
This is because in order to recover successfully from an error, your code will need to clean up after itself. Since C# doesn't have C++-style destructors, finally and using blocks are the only reliable way of ensuring that such cleanup is performed reliably. Remember that using blo...
function declaration isn't a prototype
...ly call testlib with one or more arguments, the compiler will diagnose the error.
(C++ has slightly different rules. C++ doesn't have old-style function declarations, and empty parentheses specifically mean that a function takes no arguments. C++ supports the (void) syntax for consistency with C. B...
javascript node.js next()
...
Link is not working now. It is giving Internal Server Error
– Deep Kakkar
Jan 2 '18 at 7:46
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What is the use of the square brackets [] in sql statements?
... a column name called select but select select from mytable would throw an error so select [select] from mytable would make it a valid query. Whatever word becomes colourful in your SQL management studio, should be surrounded by brackets if you want to use them as column / table / sp / etc. names. I...
json.dumps vs flask.jsonify
...he response works fine, for large arrays I get a content length mismatched error on the browser. Any ideas as to why this happens? there's a limit to how much data I can send?
– sakib11
Aug 10 at 10:47
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Commenting multiple lines in DOS batch file
... to be executed.Though the code thede will still be parsed
and some syntax errors will be detected (FOR,IF ,improperly closed brackets, wrong parameter expansion ..).So if it is possible it's better to use GOTO.
Though it is not possible to create a macro/variable used as a label - but is possible ...
What's the best way to check if a file exists in C?
...memory leak since 'file' == NULL
//fclose(file) would cause an error
}
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Entity Framework with NOLOCK
... WITH (NOLOCK))) to prevent adding nolock to derived table which causes an error.:)
– Russ
Jul 10 '14 at 7:56
Setting ...