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What is the most efficient string concatenation method in python?
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@mshsayem: "".join(chr(x) for x in xrange(65,91)) --- in this case, the argument to join is an iterator, created through a generator expression. There's no temporary list that gets constructed.
– balpha
Au...
How to split a string in Haskell?
...ist (unfoldr)
separateBy :: Eq a => a -> [a] -> [[a]]
separateBy chr = unfoldr sep where
sep [] = Nothing
sep l = Just . fmap (drop 1) . break (== chr) $ l
Only works for a single char, but should be easily extendable.
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Is it possible to force Excel recognize UTF-8 CSV files automatically?
... that's solved my issue too , in php it looks like this: $utf8_with_bom = chr(239) . chr(187) . chr(191) . $csvText;
– Abdullah
Dec 31 '13 at 7:09
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Print newline in PHP in single quotes
... ACtually I have to correct myself, with singlequotes you can enter chr(10) or chr(13) or a combination by typing exactly that in. might not be that readable though ... :)
– hakre
Jun 6 '14 at 14:28
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In Python, how do I split a string and keep the separators?
...plus one
# Note: This fails if ord(max(s)) = 0x10FFFF (ValueError)
p=chr(ord(max(s))+1)
return s.replace(sep, sep+p).split(p)
for s in test_strings:
print(split_and_keep(s, '<'))
# If the unicode limit is reached it will fail explicitly
unicode_max_char = chr(1114111)
ridiculous_...
Clear terminal in Python [duplicate]
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What about escape sequences?
print(chr(27) + "[2J")
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How to remove all whitespace from a string?
...ish(.))) %>%
ungroup()
df
# A tibble: 2 x 2
a b
<chr> <chr>
1 aZe aze s 12 12
2 wxc s aze 34e e4
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follo...
Get Character value from KeyCode in JavaScript… then trim
..." equivalent to javascript's "String.fromCharCode"
– Chris J
Jun 6 '12 at 22:52
29
It seems that ...
Flatten an irregular list of lists
...estions on this page, this is the only one that flattened this list l = ([[chr(i),chr(i-32)] for i in xrange(ord('a'), ord('z')+1)] + range(0,9)) in a snap when i did this list(flatten(l)). All the others, would start working and take forever!
– nemesisfixx
Ju...
How to write a simple database engine [closed]
...eet POBox 456"
you can have it like
<&RowHeader, 1><&Col1,CHR, 4>Adam<&Col2, num,1,0>1<&Col3, Num,2,1>111<&Col4, CHR, 24>123 ABC Street POBox 456<&RowTrailer>
How to find items quickly
try using hashing and indexing to point at data stored...