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Using the RUN instruction in a Dockerfile with 'source' does not work
...xpect a fully POSIX shell at /bin/sh. The bash shell isn't just POSIX plus extra builtins. There are builtins (and more) that behave entirely different than those in POSIX. I FULLY support avoiding POSIX (and the fallacy that any script that you didn't test on another shell is going to work because ...
How to write one new line in Bitbucket markdown?
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this places an extra blank link between line1 and line2 in bitbucket readme.md files
– simpleuser
Jul 17 '19 at 21:34
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Escape double quotes in parameter
...if I need to remove all the quotes here and place the parameter value in a string used in a select query filter? Can someone help?
– SFDC_Learner
Nov 24 '15 at 16:21
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Nested fragments disappear during transition animation
...te solution in the thread. Does not require a bitmap, does not require any extra code in the child fragment, and does not really leak information from the parent to the child fragment.
– jacobhyphenated
Jun 13 '14 at 14:52
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SQL: deleting tables with prefix
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Note to self.Increase num of max char: SET SESSION group_concat_max_len = 999999999;
– Mohammed Joraid
Apr 12 '15 at 0:59
2
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Rearrange columns using cut
...areful to quote the values "$col2" and "$col1" -- there could be shell metacharacters or other shenanigans in the data.
– tripleee
Mar 29 '17 at 5:08
add a comment
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Best way to create custom config options for my Rails app?
...th_indifferent_access" allows you to access the values in the hash using a string key or with an equivalent symbol key.
eg.
APP_CONFIG['audiocast_uri_format'] => 'http://blablalba/blabbitybla/yadda'
APP_CONFIG[:audiocast_uri_format] => 'http://blablalba/blabbitybla/yadda'
Purely a convenie...
What are the differences in die() and exit() in PHP?
... have two exit functions now! Let's make it so that they both
can take a string or integer as an argument and make them identical!"
The end result is that this didn't really make things any "easier",
just more confusing. C and Perl coders will continue to use exit() to
toss an integer exi...
How to deal with floating point number precision in JavaScript?
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toPrecision returns a string instead of a number. This might not always be desirable.
– SStanley
Mar 13 '16 at 23:42
7
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Why do we not have a virtual constructor in C++?
...) to allocate memory
invoke Derived() with placement new.
OR
create an extra vtable entry for a function that combines dynamic allocation and construction
So - it doesn't seem insurmountable to specify and implement virtual constructors, but the million-dollar question is: how would it be bett...