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Appending a line to a file only if it does not already exist
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edited Aug 7 '19 at 6:41
anatoly techtonik
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Edit line thickness of CSS 'underline' attribute
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edited Dec 12 '12 at 13:19
answered Dec 12 '12 at 13:09
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Calculate difference between two datetimes in MySQL
...atetime1,datetime2)
if datetime1 > datetime2 then
SELECT TIMEDIFF("2019-02-20 23:46:00","2019-02-19 23:45:00")
gives: 24:01:00
and datetime1 < datetime2
SELECT TIMEDIFF("2019-02-19 23:45:00","2019-02-20 23:46:00")
gives: -24:01:00
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How to get first 5 characters from string [duplicate]
...', '', $myURL, 1);
– shanehoban
Jun 19 '14 at 9:50
1
You really only need str_replace('www.','', ...
What is causing ERROR: there is no unique constraint matching given keys for referenced table?
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edited Nov 5 '15 at 13:19
Vlastimil Ovčáčík
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answered Au...
Efficiently checking if arbitrary object is NaN in Python / numpy / pandas?
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edited Jan 23 '19 at 23:31
cs95
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How can I find an element by CSS class with XPath?
...ath?
– thomasrutter
May 10 '16 at 4:19
1
@thomasrutter why the surprise - this is just a language...
Python module os.chmod(file, 664) does not change the permission to rw-rw-r— but -w--wx----
... octal :)
– radtek
Nov 25 '14 at 23:19
10
Note, for Python 3 you have prefix with 0o (zero oh).
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Split large string in n-size chunks in JavaScript
... Vivin PaliathVivin Paliath
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8
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How can I list all commits that changed a specific file?
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edited Dec 20 '19 at 14:33
OLIVER.KOO
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