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Simplest code for array intersection in javascript
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Safely limiting Ansible playbooks to a single machine?
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216
Turns out it is possible to enter a host name directly into the playbook, so running the playb...
Python Infinity - Any caveats?
... not get an inf value through usual arithmetic calculations:
>>> 2.0**2
4.0
>>> _**2
16.0
>>> _**2
256.0
>>> _**2
65536.0
>>> _**2
4294967296.0
>>> _**2
1.8446744073709552e+19
>>> _**2
3.4028236692093846e+38
>>> _**2
1.15792089...
Android: upgrading DB version and adding new table
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281
1. About onCreate() and onUpgrade()
onCreate(..) is called whenever the app is freshly instal...
Implement touch using Python?
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325
Looks like this is new as of Python 3.4 - pathlib.
from pathlib import Path
Path('path/to/fil...
What is a regular expression which will match a valid domain name without a subdomain?
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20 Answers
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In Clojure, when should I use a vector over a list, and the other way around?
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112
Once again, it seems I've answered my own question by getting impatient and asking it in #clojur...
Update value of a nested dictionary of varying depth
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24 Answers
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Pandas conditional creation of a series/dataframe column
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print(df)
yields
Set Type color
0 Z A green
1 Z B green
2 X B red
3 Y C red
If you have more than two conditions then use np.select. For example, if you want color to be
yellow when (df['Set'] == 'Z') & (df['Type'] == 'A')
otherwise blue when (df['Set'] ...
How to use Bash to create a folder if it doesn't already exist?
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280
First, in bash "[" is just a command, which expects string "]" as a last argument, so the whit...