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Identify if a string is a number
...the state machine takes O(2^n) where n is the length of the regex, whereas reading is O(k) where k is the length of the string being searched. So rebuilding the regex every time introduces a bias.
– Clément
Jan 5 '11 at 17:29
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How to set timeout on python's socket recv method?
...n more than one socket at a time.
import select
mysocket.setblocking(0)
ready = select.select([mysocket], [], [], timeout_in_seconds)
if ready[0]:
data = mysocket.recv(4096)
If you have a lot of open file descriptors, poll() is a more efficient alternative to select().
Another option is to...
What is the purpose of “&&” in a shell command?
...understand what the program considers a "failure" and how it handles it by reading the documentation and, if necessary, the source code.
Your shell considers a return value of 0 for true, other positive numbers for false
Programs return a signal on exiting. They should return 0 if they exit succes...
How can I check in a Bash script if my local Git repository has changes?
...
For reference, and if I read this right, $1 is a string naming a task you want to run and $2 is a string optionally containing a custom error message on failure. For example, call it like require_clean_work_tree deploy "Skipping deploy, clean up yo...
How to run Visual Studio post-build events for debug build only
... what the compiler does under the covers, as long as I get to write nicely readable code. (not that using goto isn't occasionally very easy to read)
– gbjbaanb
May 24 '12 at 13:23
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C++ catching all exceptions
...Trying to catch exceptions won't help there.
Just for the case someone is reading this thread and thinks he can get the cause of the program crashes. A Debugger like gdb should be used instead.
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event.preventDefault() vs. return false
...nd MSIE "attached" events are a different matter altogether.
For further reading, see attachEvent on MSDN and the W3C DOM 2 Events documentation.
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Adding options to select with javascript
...;
elOption.text = i;
}
elMainSelect.appendChild(frag);
}
You can read more about DocumentFragment on MDN, but here's the gist of it:
It is used as a light-weight version of Document to store a segment of
a document structure comprised of nodes just like a standard document.
The key...
Run a Java Application as a Service on Linux
...ERVICE_NAME started ..."
else
echo "$SERVICE_NAME is already running ..."
fi
;;
stop)
if [ -f $PID_PATH_NAME ]; then
PID=$(cat $PID_PATH_NAME);
echo "$SERVICE_NAME stoping ..."
kill $PID;
echo "$SERVICE_NAME ...
What is the difference between ng-app and data-ng-app?
...ind, ng-bind,
ng_bind, x-ng-bind and data-ng-bind.
As you can see from reading this the data- can be used to make your HTML pass HTML validator tests/
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