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How do I use Ruby for shell scripting?
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There's a lot of good advice here, so I wanted to add a tiny bit more.
Backticks (or back-ticks) let you do some scripting stuff a lot easier. Consider
puts `find . | grep -i lib`
If you run into problems with getting the output of backticks, the stuff is going to standard err instead ...
psql: FATAL: database “” does not exist
...e1" in tutorials all over the Internet but it only serves to confuse me. A more logical approach would be, in my opinion 1) Create the PostgreSQL user e.g. "usera" 2) Create a database with the same name as the user "usera" (I think this is crazy but it seems PostgreSQL requires it) 3) Log into Post...
What's the difference between a single precision and double precision floating point operation?
...EE floating-point format.
The IEEE double-precision format actually has more than twice as many bits of precision as the single-precision format, as well as a much greater range.
From the IEEE standard for floating point arithmetic
Single Precision
The IEEE single precision floating point stan...
CSS: Control space between bullet and
...g is a non-semantic inline element by itself, but in some way that affords more flexibility in its re-use. Nowadays, I believe one can use the inline-block descriptor to allow a lot greater range of formatting options.
– ingyhere
Nov 9 '19 at 0:44
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Opening project in Visual Studio fails due to nuget.targets not found error
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Thanks for this, would be nice if they gave a more helpful error message in VS for that.
– rossisdead
Oct 14 '14 at 17:37
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Handling very large numbers in Python
...from the int type, but the interpreter will automatically use whichever is more appropriate. In Python 3.0+, the int type has been dropped completely.
That's just an implementation detail, though — as long as you have version 2.5 or better, just perform standard math operations and any number whi...
Unable to set data attribute using jQuery Data() API
...attributes?
The demo on my original answer below doesn't seem to work any more.
Updated answer
Again, from the .data() documentation
The treatment of attributes with embedded dashes was changed in jQuery 1.6 to conform to the W3C HTML5 specification.
So for <div data-role="page"></...
Is it bad practice to return from within a try catch finally block?
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How do I escape ampersands in batch files?
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This is the more general applicable solution. It also works if a parameter of a command-line program has one or more ampersands in it. I just encountered this - the parameter was CGW5COMM&10C4&8301.
– Peter ...