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Enable the display of line numbers in Visual Studio
...disappeared at some point, even though the tools/options check showed them selected. As @TH Todorov stated, I had to go back, uncheck, then recheck them and save for them to reappear.
– BentChainRing
Oct 4 '17 at 18:49
...
How to set my phpmyadmin user session to not time out so quickly? [duplicate]
...sier solution, this should be the accepted answer.
– Select0r
May 22 '14 at 6:45
25
This only wor...
Rails create or update magic?
...ils - you have to separate it into two Ruby statements, one for the object selection and one for the attribute update.
– sameers
Sep 23 '14 at 5:08
...
How can I extract a good quality JPEG image from a video file with ffmpeg?
...be console output can tell you if your input is MJPEG:
$ ffprobe -v error -select_streams v:0 -show_entries stream=codec_name -of default=nw=1 input.avi
codec_name=mjpeg
Then you can extract the frames using the mjpeg2jpeg bitstream filter:
$ ffmpeg -i input.avi -codec:v copy -bsf:v mjpeg2jpeg outp...
How to prevent SIGPIPEs (or handle them properly)
...? Is there a way to check if the other side of the line is still reading? (select() doesn't seem to work here as it always says the socket is writable). Or should I just catch the SIGPIPE with a handler and ignore it?
...
How does “cat
...1. Assign multi-line string to a shell variable
$ sql=$(cat <<EOF
SELECT foo, bar FROM db
WHERE foo='baz'
EOF
)
The $sql variable now holds the new-line characters too. You can verify with echo -e "$sql".
2. Pass multi-line string to a file in Bash
$ cat <<EOF > print.sh
#!/bin...
Launching Google Maps Directions via an intent on Android
...o set the default transit mode in the intent. By default the car option is selected. Can I set Walking as the default mode?
– Bear
Jan 7 '13 at 17:32
6
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How to change time and timezone in iPhone simulator?
...tiple different time zones: add a TZ setting for each one, but remember to select only one at a time. I just added America/Chicago, Europe/Istanbul, Asia/Hong_Kong, and Pacific/Honolulu to get an assortment so I can track down a timezone-dependent bug. This will NOT work if you need to capture scree...
Finding all cycles in a directed graph
...
This answer is much better than the answer selected. I struggled for quite a while trying to figure out how to get all simple cycles from the strongly connected components. It turns out this is non-trivial. The paper by Johnson contains a great algorithm, but is a lit...
How to fix the Hibernate “object references an unsaved transient instance - save the transient insta
...
For merge, it runs a SELECT query. Otherwise, it checks the id and the version.
– Vlad Mihalcea
Sep 4 at 3:46
add a comme...