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Why are empty strings returned in split() results?
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Thank you for this, I don't know why this answer is so far down, everything else is rudimentary stuff.
– Wedge
Apr 6 '17 at 18:11
7
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Code equivalent to the 'let' keyword in chained LINQ extension method calls
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Woah, I didn't know you could autoencapsulate using the new operator like that.
– David Pfeffer
Sep 22 '10 at 15:31
19
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How to extract text from a string using sed?
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I tried sed -n '/[0-9]\+G[0-9]\+/p'. Now it just prints the whole string
– RanRag
Jul 19 '12 at 20:43
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Create objective-c class instance by name?
...less dynamic because I used a symbol instead of a string. However, if you know the class that you want when you are writing the code, then it's preferable to use the symbol so as to avoid possible typos.
– Simon Woodside
Nov 25 '11 at 19:46
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Changing the width of Bootstrap popover
...s the site. But did find an answer.More correctly a workaround, posting it now.
– mayankbatra
Oct 26 '13 at 7:57
@Pete...
Why are Python's 'private' methods not actually private?
...ional OOP. Not that this prevents idiots from writing JS, they just don't know it ;)
– K.Steff
Apr 10 '12 at 1:45
25
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How to overcome “datetime.datetime not JSON serializable”?
...lizable. In this case it's str, so it just converts everything it doesn't know to strings. Which is great for serialization but not so great when deserializing (hence the "quick & dirty") as anything might have been string-ified without warning, e.g. a function or numpy array.
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Open firewall port on CentOS 7
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The answer by ganeshragav is correct, but
it is also useful to know that you can use:
firewall-cmd --permanent --zone=public --add-port=2888/tcp
but if is a known service, you can use:
firewall-cmd --permanent --zone=public --add-service=http
and then reload the firewall
firewall...
Acronyms in CamelCase [closed]
... an abbreviation of "identifier" or "identification"), but I don't really know how/if this guideline helps with that one. :-\
– bryant
Apr 16 '14 at 4:23
68
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sed command with -i option (in-place editing) works fine on Ubuntu but not Mac [duplicate]
I know nothing about Sed but need this command (which works fine on Ubuntu) to work on a Mac OSX:
4 Answers
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