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What is the difference between setUp() and setUpClass() in Python unittest?
What is the difference between setUp() and setUpClass() in the Python unittest framework? Why would setup be handled in one method over the other?
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PHP: How to handle
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@SimonePalazzo XML consists of various different "nodes" - e.g. <anElement>a text node <aChildElement /> <![CDATA a cdata node]]> another text node</anElement>. The CDATA and text nodes are different types, and SimpleXML tracks this so you c...
$(document).ready shorthand
... with .ready(). Rather, it is an immediately-invoked function expression (IIFE) with the jQuery object as its argument. Its purpose is to restrict the scope of at least the $ variable to its own block so it doesn't cause conflicts. You typically see the pattern used by jQuery plugins to ensure that ...
How to get a subset of a javascript object's properties
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@TomSarduy you could use rest if you want to specify which props to remove, e.g. const { b, ...picked } = object would create picked as { a: 5, c: 7 }. You've specified simply to remove b. Your eslint will probably be annoyed at you for declaring a var th...
Opposite of %in%: exclude rows with values specified in a vector
...cond option is illustrated in the help(match) page (where you would get to if you typed ?"%in%" ) where the new operator is called %w/o%.
– IRTFM
Apr 29 '11 at 12:50
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Display names of all constraints for a table in Oracle SQL
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You need to query the data dictionary, specifically the USER_CONS_COLUMNS view to see the table columns and corresponding constraints:
SELECT *
FROM user_cons_columns
WHERE table_name = '<your table name>';
FYI, unless you specifically created your table w...
How to change theme for AlertDialog
I was wondering if someone could help me out. I am trying to create a custom AlertDialog. In order to do this, I added the following line of code in styles.xml
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How to Append in javascript? [duplicate]
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If you need to append a script so that it's parsed you could do as google does for his +1 button
(function() {
var po = document.createElement('script');
po.type = 'text/javascript';
po.async = true;
po.src...
Size of Matrix OpenCV
...n the size of a matrix in OpenCV?. I googled and I am still searching, but if any of you know the answer, please help me.
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AttributeError: 'module' object has no attribute 'urlopen'
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A Python 2+3 compatible solution is:
import sys
if sys.version_info[0] == 3:
from urllib.request import urlopen
else:
# Not Python 3 - today, it is most likely to be Python 2
# But note that this might need an update when Python 4
# might be around one day
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