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SQLite Concurrent Access
...sses are reads (e.g. SELECT), SQLite can handle them very well. But if you start writing concurrently, lock contention could become an issue. A lot would then depend on how fast your filesystem is, since the SQLite engine itself is extremely fast and has many clever optimizations to minimize content...
How do I duplicate a whole line in Emacs?
...use
C-a C-SPACE C-n M-w C-y
which breaks down to
C-a: move cursor to start of line
C-SPACE: begin a selection ("set mark")
C-n: move cursor to next line
M-w: copy region
C-y: paste ("yank")
The aforementioned
C-a C-k C-k C-y C-y
amounts to the same thing (TMTOWTDI)
C-a: move cursor to s...
Calendar returns wrong month [duplicate]
...
Correct! The month starts from 0 and ends on 11.
– Erfan
Jul 23 at 23:48
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Unable to launch the IIS Express Web server
...y executing
netstat -a -b
in the console (as Administrator, type cmd in start menu, right click and choose 'Run as admiminstrator'). If you see an entry which state is ESTABLISHED or LISTENING for example it means that some other process is using this port. You'll need to terminate that process o...
Drawing text to with @font-face does not work at the first time
...her element on the page preload it, eg.:
<div style="font-family: PressStart;">.</div>
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Move existing, uncommitted work to a new branch in Git
I started some work on a new feature and after coding for a bit, I decided this feature should be on its own branch.
9 Ans...
How to ignore whitespace in a regular expression subject string?
...arch(regex, no_spaces)
if not match:
return match
# match.start() and match.end() are indices of start and end
# of the found string in the spaceless string
# (as we have searched in it).
start = char_positions[match.start()] # in the original string
end = char_posi...
How do negative margins in CSS work and why is (margin-top:-5 != margin-bottom:5)?
...absolute;
}
.set6 .child {
top: 50%; /* level from which margin-top starts
- downwards, in the case of a positive margin
- upwards, in the case of a negative margin
*/
left: 50%; /* level from which margin-left starts
- towards right, in the case of a positive margin
- towards...
Cancel a UIView animation?
...n and make sure you use the +setAnimationBeginsFromCurrentState: method to start from the current state. When you set it to YES, the current animation is cut short. Looks something like this:
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnim...
javascript regex - look behind alternative?
...t word anywhere. This one is much simpler: matching a string that doesn't start with the target word.
– Alan Moore
Sep 11 '11 at 5:50
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