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What are the aspect ratios for all Android phone and tablet devices?
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In case anyone wanted more of a visual reference:
Decimal approximations reference table:
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Java: how can I split an ArrayList in multiple small ArrayLists?
How can I split an ArrayList (size=1000) in multiple ArrayLists of the same size (=10) ?
18 Answers
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Shuffle two list at once with same order
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211
You can do it as:
import random
a = ['a', 'b', 'c']
b = [1, 2, 3]
c = list(zip(a, b))
rando...
sed: print only matching group
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140
Match the whole line, so add a .* at the beginning of your regex. This causes the entire line ...
How to validate an email address using a regular expression?
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How to get the primary IP address of the local machine on Linux and OS X? [closed]
...ould return me the primary (first) IP address of the localhost, other than 127.0.0.1
31 Answers
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Fastest way to check if string contains only digits
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Regex group capture in R with multiple capture-groups
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118
str_match(), from the stringr package, will do this. It returns a character matrix with one co...
How to check if a string is a valid hex color representation?
...d support for 3-character HEX codes, use the following:
/^#([0-9A-F]{3}){1,2}$/i.test('#ABC')
The only difference here is that
[0-9A-F]{6}
is replaced with
([0-9A-F]{3}){1,2}
This means that instead of matching exactly 6 characters, it will match exactly 3 characters, but 1 or 2 times. Al...
What is the most pythonic way to check if an object is a number?
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