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What does the (unary) * operator do in this Ruby code?
...tion (any time you're using it on some previously undefined variables), it groups separate values into an array. So a,b,*c = d,e,f,*g sets a=d, b=e, and c=[f,g0,g1,g2,...,gn], where g=[g0,g1,g2,...,gn]
– rampion
May 28 '09 at 2:38
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In Python, how do I indicate I'm overriding a method?
...ck()
base_classes = re.search(r'class.+\((.+)\)\s*\:', stack[2][4][0]).group(1)
# handle multiple inheritance
base_classes = [s.strip() for s in base_classes.split(',')]
if not base_classes:
raise ValueError('overrides decorator: unable to determine base class')
# stac...
Examples of GoF Design Patterns in Java's core libraries
...rtBuffer, IntBuffer, LongBuffer, FloatBuffer and DoubleBuffer)
javax.swing.GroupLayout.Group#addComponent()
All implementations of java.lang.Appendable
java.util.stream.Stream.Builder
Factory method (recognizeable by creational methods returning an implementation of an abstract/interface type)
jav...
Checking for NULL pointer in C/C++ [closed]
...ning settings.
The important point is to pick a consistent style for your group and stick to it. No matter which way you go, you'll eventually get used to it, and the loss of friction when working in other people's code will be welcome.
...
How to loop through all but the last item of a list?
...nsecutive elements (excellent SilentGhost answer), yet generalized for any group (n-gram): 2, 3, ... n:
zip(*(l[start:] for start in range(0, n)))
Examples:
l = range(0, 4) # [0, 1, 2, 3]
list(zip(*(l[start:] for start in range(0, 2)))) # == [(0, 1), (1, 2), (2, 3)]
list(zip(*(l[start:] for sta...
Is it possible to select the last n items with nth-child?
...antics is to allow segregation of a bunch of child elements into repeating groups (edit - thanks BoltClock) or into a first part of some fixed length, followed by "the rest". You sort-of want the opposite of that, which is what nth-last-child gives you.
...
Why is Linux called a monolithic kernel?
... core functionality (scheduling, memory allocation, etc.) are a tight knit group sharing the same space. This directly opposes a microkernel.
A microkernel prefers an approach where core functionality is isolated from system services and device drivers (which are basically just system services). Fo...
Progress indicator during pandas operations
...his will not noticeably slow pandas down -- here's an example for DataFrameGroupBy.progress_apply:
import pandas as pd
import numpy as np
from tqdm import tqdm
# from tqdm.auto import tqdm # for notebooks
df = pd.DataFrame(np.random.randint(0, int(1e8), (10000, 1000)))
# Create and register a new...
Difference between InvariantCulture and Ordinal string comparison
...g case except not ultimately ignored in a case-insensitive compare). This groups accented versions of the otherwise same word near each other instead of completely separate at the first accent difference. This is the sort order you would typically find in a dictionary, with capitalized words appea...
Find Oracle JDBC driver in Maven repository
...po. Just check it out, it contains the vendor's preferred Maven info:
<groupId>com.oracle</groupId>
<artifactId>ojdbc14</artifactId>
<version>10.2.0.3.0</version>
...and the URL to download the file which in this case is
http://www.oracle.com/technology/softwar...