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MongoDB with redis
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Didier SpeziaDidier Spezia
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How to make a great R reproducible example
...sed for making factors.
A few examples :
random values : x <- rnorm(10) for normal distribution, x <- runif(10) for uniform distribution, ...
a permutation of some values : x <- sample(1:10) for vector 1:10 in random order.
a random factor : x <- sample(letters[1:4], 20, replace = TRU...
Double not (!!) operator in PHP
...rrays, etc.) you will get the boolean value TRUE, and for any false value (0, 0.0, NULL, empty strings or empty arrays) you will get the boolean value FALSE.
It is functionally equivalent to a cast to boolean:
return (bool)$row;
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Looping over arrays, printing both index and value
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edited Feb 22 '19 at 20:38
Community♦
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answered Jul 17 '11 at 11:26
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font-style: italic vs oblique in CSS
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edited May 22 '14 at 15:10
BoltClock♦
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Why JSF saves the state of UI components on server?
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201
Why does JSF need to save the state of UI components on the server side ?
Because HTTP is sta...
What does @@variable mean in Ruby?
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240
A variable prefixed with @ is an instance variable, while one prefixed with @@ is a class variab...
Git submodule update
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This GitPro page does summarize the consequence of a git submodule update nicely
When you ru...
Histogram Matplotlib
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import matplotlib.pyplot as plt
import numpy as np
mu, sigma = 100, 15
x = mu + sigma * np.rand...
Hidden features of Python [closed]
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740
votes
Chaining comparison operators:
>>> x = 5
>>> 1 < x <...