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How to calculate the number of occurrence of a given character in each row of a column of strings?
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13 Answers
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Sass combining parent using ampersand (&) with type selectors
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As Kumar points out, this has been possible since Sass 3.3.0.rc.1 (Maptastic Maple).
The @at-root directive causes one or more rules to be emitted at the root of the document, rather than being nested beneath their parent selectors.
We can combine the @at-root directive alo...
`elif` in list comprehension conditionals
...s were designed exactly for this sort of use-case:
>>> l = [1, 2, 3, 4, 5]
>>> ['yes' if v == 1 else 'no' if v == 2 else 'idle' for v in l]
['yes', 'no', 'idle', 'idle', 'idle']
Hope this helps :-)
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Algorithm for Determining Tic Tac Toe Game Over
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133
You know a winning move can only happen after X or O has made their most recent move, so you ca...
How to sort Counter by value? - python
...;> from collections import Counter
>>> x = Counter({'a':5, 'b':3, 'c':7})
>>> x.most_common()
[('c', 7), ('a', 5), ('b', 3)]
It'll do so in the most efficient manner possible; if you ask for a Top N instead of all values, a heapq is used instead of a straight sort:
>>&g...
How can I use “.” as the delimiter with String.split() in java [duplicate]
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203
String.split takes a regex, and '.' has a special meaning for regexes.
You (probably) want some...
Difference between float and decimal data type
...mysql> insert into numbers values (100, 100);
mysql> select @a := (a/3), @b := (b/3), @a * 3, @b * 3 from numbers \G
*************************** 1. row ***************************
@a := (a/3): 33.333333333
@b := (b/3): 33.333333333333
@a + @a + @a: 99.999999999000000000000000000000
@b + @b...
Cannot ping AWS EC2 instance
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answered May 30 '15 at 9:39
RakibRakib
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How can I disable logging of asset pipeline (sprockets) messages in Ruby on Rails 3.1?
... tends to be quite verbose in the (dev) log by default under Ruby on Rails 3.1 (RC1):
14 Answers
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Cannot import XSSF in Apache POI
I am referencing the version 3.7 of the Apache POI and I am getting a "cannot be resolved" error when I do:
11 Answers
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