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Should you always favor xrange() over range()?
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12 Answers
12
Active
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Is a Python dictionary an example of a hash table?
...t; hash(b)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: list objects are unhashable
>>> a[b] = 'some'
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: list objects are unhashable
You can read...
Histogram Matplotlib
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import matplotlib.pyplot as plt
import numpy as np
mu, sigma = 100, 15
x = mu + sigma * np.random.randn(10000)
hist, bins = np.histogram(x, bins=50)
width = 0.7 * (bins[1] - bins[0])
center = (bins[:-1] + bins[1:]) / 2
plt.bar(center, hist, align='center', width=width)
plt.show()
The...
How to create ENUM type in SQLite?
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81
There is no enum type in SQLite, only the following:
NULL
INTEGER
REAL
TEXT
BLOB
Source: htt...
What is the JavaScript equivalent of var_dump or print_r in PHP? [duplicate]
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314
Most modern browsers have a console in their developer tools, useful for this sort of debugging...
How to loop over directories in Linux?
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130
cd /tmp
find . -maxdepth 1 -mindepth 1 -type d -printf '%f\n'
A short explanation:
find f...
Exploitable PHP functions
...'ob_start' => 0,
'array_diff_uassoc' => -1,
'array_diff_ukey' => -1,
'array_filter' => 1,
'array_intersect_uassoc' => -1,
'array_intersect_ukey' => -1,
'array_map' => 0,
'array_reduce' ...
python capitalize first letter only
... you can use '2'.isdigit() to check for each character.
>>> s = '123sa'
>>> for i, c in enumerate(s):
... if not c.isdigit():
... break
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>>> s[:i] + s[i:].capitalize()
'123Sa'
sha...
I need a Nodejs scheduler that allows for tasks at different intervals [closed]
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'* * * * * *' - runs every second
'*/5 * * * * *' - runs every 5 seconds
'10,20,30 * * * * *' - run at 10th, 20th and 30th second of every minute
'0 * * * * *' - runs every minute
'0 0 * * * *' - runs every hour (at 0 minutes and 0 seconds)
But also more complex schedules e.g.
'00 30 11 * * 1-5'...
jQuery UI accordion that keeps multiple sections open?
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14 Answers
14
Active
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