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How to know if an object has an attribute in Python
...at, if the property is likely to be there most of the time, simply call it and either let the exception propagate, or trap it with a try/except block. This will likely be faster than hasattr. If the property is likely to not be there most of the time, or you're not sure, using hasattr will probably ...
How to get just one file from another branch
I am using git and working on master branch. This branch has a file called app.js .
10 Answers
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How to format strings using printf() to get equal length in the output?
...o functions, one which produces messages like Starting initialization... and another which checks return codes and outputs "Ok" , "Warning" or "Error" . However, the output that is produced is of the different length:
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Collapsing Sidebar with Bootstrap
I just visited this page http://www.elmastudio.de/ and wondered if it is possible to build the left sidebar collapse with Bootstrap 3.
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Can I use a function for a default value in MySql?
... Note that as per the already linked docs in answer: ... stored functions, and user-defined functions are not permitted. I.e., the only functions that can be used as default expressions are built-in functions.
– asherbar
Mar 29 at 21:19
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How to update a single library with Composer?
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To install doctrine/doctrine-fixtures-bundle with version 2.1.* and minimum stability @dev use this:
composer.phar require doctrine/doctrine-fixtures-bundle:2.1.*@dev
then to update only this single package:
composer.phar update doctrine/doctrine-fixtures-bundle
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Find the last element of an array while using a foreach loop in PHP
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$numItems = count($arr) trick is not needed and reduces readability - in PHP there is no performance penalty for accessing count($arr) each time. The reason is that items count is internally saved as special field in the array header and is not calculated on-the-fly. T...
What happens if a finally block throws an exception?
...throws an exception what exactly happens ?
That exception propagates out and up, and will (can) be handled at a higher level.
Your finally block will not be completed beyond the point where the exception is thrown.
If the finally block was executing during the handling of an earlier exception t...
SELECT INTO a table variable in T-SQL
...' to go into the UserData 'name' variable but you are selecting 'location' and somehow assigning it to the UserData 'oldlocation' variable. Will SQL just map these automatically or will it throw some kind of exception?
– Aran Mulholland
Nov 17 '15 at 7:23
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How to extract numbers from a string in Python?
...his is better than the regex example because you don't need another module and it's more readable because you don't need to parse (and learn) the regex mini-language.
This will not recognize floats, negative integers, or integers in hexadecimal format. If you can't accept these limitations, jmnas's...