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++someVariable vs. someVariable++ in JavaScript
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250
Same as in other languages:
++x (pre-increment) means "increment the variable; the value of t...
What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort
...ic notation eg 1.234E10 but is slower and subject to rounding error (1.2345678 could come after 1.2345679), numeric sort is just a regular alphabetic sort that knows 10 comes after 9.
See http://www.gnu.org/software/coreutils/manual/html_node/sort-invocation.html
‘-g’ ‘--general-nume...
Reference — What does this symbol mean in PHP?
...is a byte? A byte is made up of 8 bits and the highest value of a byte is 255, which would mean every bit is set. We will look at why a byte's maximum value is 255.
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| 1 Byte ( 8 bits ) |
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|P...
How can I replace a regex substring match in Javascript?
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answered Aug 30 '10 at 5:53
AmarghoshAmarghosh
53.8k1111 gold badges8585 silver badges118118 bronze badges
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Best way of returning a random boolean value
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245
A declarative snippet using Array#sample:
random_boolean = [true, false].sample
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How to access the ith column of a NumPy multidimensional array?
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>>> test[:,0]
array([1, 3, 5])
Similarly,
>>> test[1,:]
array([3, 4])
lets you access rows. This is covered in Section 1.4 (Indexing) of the NumPy reference. This is quick, at least in my experience. It's certainly much quicker than a...
while (1) vs. while(True) — Why is there a difference (in python 2 bytecode)?
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125
In Python 2.x, True is not a keyword, but just a built-in global constant that is defined to 1 i...
Crontab Day of the Week syntax
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385
0 and 7 both stand for Sunday, you can use the one you want, so writing 0-6 or 1-7 has the same ...