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Array.Add vs +=
...them in as few operations as possible, ex:
$arr = 1..3 #Array
$arr += (4..5) #Combine with another array in a single write-operation
$arr.Count
5
If that's not possible, consider using a more efficient collection like List or ArrayList (see the other answer).
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Finding the author of a line of code in Mercurial
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edited Mar 18 '13 at 14:21
answered Feb 9 '10 at 10:44
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How to plot multiple functions on the same figure, in Matplotlib?
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import math
import matplotlib.pyplot as plt
t = linspace(0, 2*math.pi, 400)
a = sin(t)
b = cos(t)
c = a + b
plt.plot(t, a, 'r') # plotting t, a separately
plt.plot(t, b, 'b') # plotting t, b separately
plt.plot(t, c, 'g') # plotting t, c separately
plt.show()
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Rails “validates_uniqueness_of” Case Sensitivity
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4 Answers
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How can I limit a “Run Script” build phase to my release configuration?
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4
@Hedin - that is just bash; if you have multi-word variable, you need to surround the variable in quotes. So ${CONFIGURATION} becomes "${CON...
Why do we need argc while there is always a null at the end of argv?
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4 Answers
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Convert number strings with commas in pandas DataFrame to float
...n_GB.UTF-8'
In [12]: df.applymap(atof)
Out[12]:
0 1
0 1200 4200.00
1 7000 -0.03
2 5 0.00
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Is it possible to execute code once before all tests run?
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154
FWIW, you can use the AssemblyInitialize attribute to run code before all unit tests in an assem...
Cost of exception handlers in Python
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114
Why don't you measure it using the timeit module? That way you can see whether it's relevant to ...
Order by multiple columns with Doctrine
...By method. cheers for pointing it out :)
– user3676604
Jul 12 '17 at 14:43
Diego Agulló: Unfortunately both links in ...