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What is your single most favorite command-line trick using Bash? [closed]
...es with suffixes quickly:
cp /home/foo/realllylongname.cpp{,-old}
This expands to:
cp /home/foo/realllylongname.cpp /home/foo/realllylongname.cpp-old
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answered Sep 16 '0...
Entity Framework Provider type could not be loaded?
...ed this too. If you create a library that uses EF, VS will put the EF.dll and the EF.SqlServer.dll into that build folder. But if you now have another program make use of your library, only the EF.dll will be put into this build folder. The EF.SqlServer.dll is missing. If you add it manually to ...
pandas: multiple conditions while indexing data frame - unexpected behavior
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As you can see, the AND operator drops every row in which at least one
value equals -1. On the other hand, the OR operator requires both
values to be equal to -1 to drop them.
That's right. Remember that you're writing the condition in te...
Export and Import all MySQL databases at one time
...re than 100 MySQL databases. I want to export all of them at the same time and again import all of them into my MySQL server at one time. How can I do that?
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Video auto play is not working in Safari and Chrome desktop browser
...e this stackoverflow.com/questions/43570460/…
– Leandro H Agostinho
Feb 1 '19 at 11:43
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Is there a “previous sibling” selector?
...g the element comes after this one, but not necessarily immediately after) and is a CSS3 selector. + is for next sibling and is CSS2.1.
See Adjacent sibling combinator from Selectors Level 3 and 5.7 Adjacent sibling selectors from Cascading Style Sheets Level 2 Revision 1 (CSS 2.1) Specification.
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Drop all tables whose names begin with a certain string
...his script several times because of foreign key constraints between master and detail tables.
– Alexander Prokofyev
Dec 26 '08 at 5:24
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Set a default parameter value for a JavaScript function
...ments which I set a default on, which get used if the value isn't defined (and ignored if the value is passed). In Ruby you can do it like this:
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Is there any reason to use a synchronous XMLHttpRequest?
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I think they might become more popular as HTML 5 standards progress. If a web application is given access to web workers, I could foresee developers using a dedicated web worker to make synchronous requests for, as Jonathan said, to ensure one request happens before another....
Two single-column indexes vs one two-column index in MySQL?
I'm faced with the following and I'm not sure what's best practice.
4 Answers
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