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How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
...h gives you descriptions of all TTY devices known to the system. A trimmed down example:
# ll /sys/class/tty/ttyUSB*
lrwxrwxrwx 1 root root 0 2012-03-28 20:43 /sys/class/tty/ttyUSB0 -> ../../devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.0/ttyUSB0/tty/ttyUSB0/
lrwxrwxrwx 1 root root 0 20...
Invalid argument supplied for foreach()
... nor IteratorAggregate would ever need verifying (this way they won't slow down execution). I left them in to keep the answer as close as possible to the original answer I gave and to keep it obvious/readable.
– Kris
Mar 14 '14 at 6:51
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MySQL get row position in ORDER BY
... you may try to split it into two queries.
The first query with a narrow-down filtering criteria just to retrieve data of that row, and the second query uses COUNT with WHERE clause to calculate the position.
For example in your case
Query 1:
SELECT * FROM tbl WHERE name = 'Beta'
Query 2:
SEL...
Where to place private methods in Ruby?
... end
end
This method should prevent you from having to scroll up and down and will make other programmers more comfortable in your code.
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What is the purpose of a question mark after a type (for example: int? myVariable)?
...' declaring a null-able type and a ternary expression. Voting your answer down sir.
– Gus Crawford
Mar 4 '15 at 15:38
36
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JavaScript naming conventions [closed]
... seem very outdated. I would advice looking at @PavelHodek answer further down the list
– Per Hornshøj-Schierbeck
Apr 20 '15 at 9:13
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“implements Runnable” vs “extends Thread” in Java
...ccepted answer IMHO. One thing: the snippet of code you have doesn't close down the executor and I see millions of questions where people get this wrong, creating a new Executor every time they want to spawn a task. es would be better as a static (or injected) field so it only gets created once.
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Targeting both 32bit and 64bit with Visual Studio in same solution/project
...chitecture=AMD64" />
</ItemGroup>
The condition is also reduced down to all build types, release or debug, and just specifies the processor architecture.
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Are there any reasons to use private properties in C#?
...t in consistency checks that run in the debug build.
Basically, it comes down to : code is far more powerful than data. Any technique that lets me write the code I need is a good one. Fields don't let you write code in them, properties do.
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Current location permission dialog disappears too quickly
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While difficult to track down, the solution for this is quite simple.
Through much trial and error I found out that while the location access dialog pops up when you try to access any location services in the app for the first time, the dialog disap...