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What is getattr() exactly and how do I use it?
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124
getattr(object, 'x') is completely equivalent to object.x.
There are only two cases where get...
Applying function with multiple arguments to create a new pandas column
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>>> import numpy as np
>>> df = pd.DataFrame({"A": [10,20,30], "B": [20, 30, 10]})
>>> df['new_column'] = np.multiply(df['A'], df['B'])
>>> df
A B new_column
0 10 20 200
1 20 30 600
2 30 10 300
or vectorize arbitrary functi...
Quick easy way to migrate SQLite3 to MySQL? [closed]
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62
Here is a list of converters (not updated since 2011):
https://www2.sqlite.org/cvstrac/wiki?p=...
Can I install/update WordPress plugins without providing FTP access?
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32 Answers
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Named capturing groups in JavaScript regex?
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ECMAScript 2018 introduces named capturing groups into JavaScript regexes.
Example:
const auth = 'Bearer AUTHORIZATION_TOKEN'
const { groups: { token } } = /Bearer (?<token>[^ $]*)/.exec(auth)
console.log(token) // "Prints...
Unable to understand useCapture parameter in addEventListener
....log(1)}, false);
window.addEventListener("click", function(){console.log(2)}, true);
window.addEventListener("click", function(){console.log(3)}, false);
window.addEventListener("click", function(){console.log(4)}, true);
The log messages will appear in this order:
2 (defined first, usi...
How to use git with gnome-keyring integration
...ch (which answers the original question) but I'm on Ubuntu. For git >= 2.11:
sudo apt-get install libsecret-1-0 libsecret-1-dev
cd /usr/share/doc/git/contrib/credential/libsecret
sudo make
git config --global credential.helper /usr/share/doc/git/contrib/credential/libsecret/git-credential-libse...
PHP function to get the subdomain of a URL
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28 Answers
28
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How to persist a property of type List in JPA?
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12 Answers
12
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In log4j, does checking isDebugEnabled before logging improve performance?
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252
In this particular case, Option 1 is better.
The guard statement (checking isDebugEnabled()) ...