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How to overcome “datetime.datetime not JSON serializable”?
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32 Answers
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Open files in 'rt' and 'wt' modes
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Tadhg McDonald-Jensen
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answered Apr 14 '14 at 2:36
devnulldevnull
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How to output only captured groups with sed?
... output as well as specifying what you do want.
string='This is a sample 123 text and some 987 numbers'
echo "$string" | sed -rn 's/[^[:digit:]]*([[:digit:]]+)[^[:digit:]]+([[:digit:]]+)[^[:digit:]]*/\1 \2/p'
This says:
don't default to printing each line (-n)
exclude zero or more non-digits
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What is the 'pythonic' equivalent to the 'fold' function from functional programming?
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edited Sep 21 '19 at 0:30
goetzc
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Convert a matrix to a 1 dimensional array
I have a matrix (32X48).
10 Answers
10
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What is pseudopolynomial time? How does it differ from polynomial time?
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2 Answers
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How to URL encode a string in Ruby
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str = "\x12\x34\x56\x78\x9a\xbc\xde\xf1\x23\x45\x67\x89\xab\xcd\xef\x12\x34\x56\x78\x9a".force_encoding('ASCII-8BIT')
puts CGI.escape str
=> "%124Vx%9A%BC%DE%F1%23Eg%89%AB%CD%EF%124Vx%9A"
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How to get a substring of text?
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246
If you have your text in your_text variable, you can use:
your_text[0..29]
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C# loop - break vs. continue
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edited Jul 8 '16 at 17:21
answered Aug 8 '08 at 21:51
Mi...
Why can't I use background image and color together?
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answered May 24 '09 at 13:30
GuffaGuffa
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