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Site does not exist error for a2ensite
... pretty much everything... I will remember to add the .conf extension from now on...
– wtf8_decode
Mar 2 '15 at 17:53
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Semicolon before self-invoking function? [duplicate]
...ious to find if this is the next awesome thing in JavaScript that I don't know.
4 Answers
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How can I check if the current date/time is past a set date/time?
...r, if you are using UTC dates (as you should), prefer to use new DateTime("now", new DateTimeZone('UTC')). This will prevent your app from misunderstandable bugs in dates. i advise you to store it in a function static variable, a class static or somewhere else in your running process...
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Callback functions in Java
...rface myCallback {
void onSuccess();
void onError(String err);
}
now to make this callback run when ever you wish to do to handle the results - more likely after async call and you wanna run some stuff which depends on these reuslts
// import the Interface class here
public class App {
...
How do you do a limit query in JPQL or HQL?
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Old post I know. I fully agree with Rachel. Using NHibernate (.Net port of Hibernate), I've recently upgraded from 2 to 3 and same thing, top X is now throwing a parser error. However, when I added setMaxResults on the query, it did gene...
SQLAlchemy: print the actual query
...e = table('mytable', column('mycol'))
values = (
5,
u'snowman: ☃',
b'UTF-8 snowman: \xe2\x98\x83',
datetime.now(),
Decimal('3.14159'),
10 ** 20, # a long integer
)
statement = select([mytable]).where(mytable.c.mycol.in_(values)).limit(1...
Uppercase Booleans vs. Lowercase in PHP
...indulge in hating PHP (e.g. just see what Johrn mentioned above, I didn't know that for one), but given that it's basically case-insensitive, there is nothing strange in mixed-case expressions being the same. What is nonsense, however, that it mixes case-sensitivity and case-insensitivity with gene...
C++ - passing references to std::shared_ptr or boost::shared_ptr
...e
{
...
sp->do_something();
...
}
How do you know that sp->do_something() will not blow up due to a null pointer?
It all depends what is in those '...' sections of the code. What if you call something during the first '...' that has the side-effect (somewhere in anot...
How does SSL really work?
...ings they are allowed to sign (other certificates), and their public key.
Now if I have a copy of that Verisign certificate, I can use that to validate the signature on the server certificate for the website I want to visit. Easy, right?!
Well, not so fast. I had to get the Verisign certificate fr...
How to write a:hover in inline CSS?
...
You could do it at some point in the past. But now (according to the latest revision of the same standard, which is Candidate Recommendation) you can't
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