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Relative paths based on file location instead of current working directory [duplicate]
...n -f here, because it is the most well-known one.
Multi-(Unix-like-)platform solution (including platforms with a POSIX-only set of utilities):
If your script must run on any platform that:
has a readlink utility, but lacks the -f option (in the GNU sense of resolving a symlink to its ultimate...
What is the difference between a generative and a discriminative algorithm?
...Here's a really simple example. Suppose you have the following data in the form (x,y):
(1,0), (1,0), (2,0), (2, 1)
p(x,y) is
y=0 y=1
-----------
x=1 | 1/2 0
x=2 | 1/4 1/4
p(y|x) is
y=0 y=1
-----------
x=1 | 1 0
x=2 | 1/2 1/2
If you take a few minutes to st...
Keeping ASP.NET Session Open / Alive
...
I use JQuery to perform a simple AJAX call to a dummy HTTP Handler that does nothing but keeping my Session alive:
function setHeartbeat() {
setTimeout("heartbeat()", 5*60*1000); // every 5 min
}
function heartbeat() {
$.get(
...
How should equals and hashcode be implemented when using JPA and Hibernate
...be detaching / attaching its instances. The latter is not that common. The former is usually best handled via:
Basing equals() / hashCode() on a business key - e.g. a unique combination of attributes that is not going to change during object (or, at least, session) lifetime.
If the above is imposs...
How to execute ipdb.set_trace() at will while running pytest tests
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
...
How would I extract a single file (or changes to a file) from a git stash?
...nation above is the commit at which changes were stashed away. We use this form of "git diff" (with two commits) because stash@{0} / refs/stash is a merge commit, and we have to tell git which parent we want to diff against. More cryptic:
$ git diff stash@{0}^! -- <filename>
should also wor...
ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
...irectory it uses) - in my case, listener.ora in that directory contained information pertaining to an old database instance that i had uninstalled - quick and dirty way was to copy the entire contents of listener.ora from my current installation of Oracle Express, to that other directory that listen...
Force Java timezone as GMT/UTC
...ving Date/Time/Timestamp objects from a database ResultSet, use the second form of the getXXX methods that takes a Calendar object:
Calendar tzCal = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
ResultSet rs = ...;
while (rs.next()) {
Date dateValue = rs.getDate("DateColumn", tzCal);
/...
PHP function to generate v4 UUID
...on generates a valid v4 UUID up until one area. A v4 UUID should be in the form of:
15 Answers
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How can I make XSLT work in chrome?
...L document here that is served with a corresponding XSL file . The transformation is left to be executed client-side, without JavaScript.
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