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What is the fastest way to check if a class has a function defined?
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213
Yes, use getattr() to get the attribute, and callable() to verify it is a method:
invert_op =...
Logger slf4j advantages of formatting with {} instead of string concatenation
...meters are possible
Because the vast majority of logging statements have 2 or fewer parameters, so SLF4J API up to version 1.6 covers (only) the majority of use cases. The API designers have provided overloaded methods with varargs parameters since API version 1.7.
For those cases where you need...
git remote prune – didn't show as many pruned branches as I expected
...world example for better understanding:
You have a remote repository with 2 branches: master and feature. Let's assume that you are working on both branches, so as a result you have these references in your local repository (full reference names are given to avoid any confusion):
refs/heads/maste...
Select 50 items from list at random to write to file
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278
If the list is in random order, you can just take the first 50.
Otherwise, use
import random...
How to calculate a mod b in Python?
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243
There's the % sign. It's not just for the remainder, it is the modulo operation.
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Hide div after a few seconds
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252
This will hide the div after 1 second (1000 milliseconds).
setTimeout(function() {
$...
Java naming convention for static final variables [duplicate]
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72
That's still a constant. See the JLS for more information regarding the naming convention for co...
Get MIME type from filename extension
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