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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 {
...
When to use ' (or quote) in Lisp?
...et (+ 3 2), + is then invoked on 3 and 2 yielding 5. Our original form is now (* 5 3) yielding 15.
Explain quote Already!
Alright. As seen above, all arguments to a function are evaluated, so if you would like to pass the symbol a and not its value, you don't want to evaluate it. Lisp symbols ca...
How do I set environment variables from Java?
...cessBuilders through it before starting them.
Also, you probably already know this, but you can start more than one process with the same ProcessBuilder. So if your subprocesses are the same, you don't need to do this setup over and over.
...
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
... a JSON file:
Which presents all the information I'm looking for.
From now, I must implement all this knowledge in scrapy. Let's define the spider for this purpose:
class spider(BaseSpider):
name = 'RubiGuesst'
start_urls = ['http://www.rubin-kazan.ru/guestbook.html']
def parse(sel...
How do I delete a fixed number of rows with sorting in PostgreSQL?
...g where id = any (array( select id from cs_logging where date_created < now() - interval '1 days' * 30 and partition_key like '%I' order by id limit 500 )) Slow one: delete from cs_logging where id in ( select id from cs_logging where date_created < now() - interval '1 days' * 30 and partition...
Do declared properties require a corresponding instance variable?
...e Modern Objective-C Runtime (that's either iOS 3.x or greater, or 64-bit Snow Leopard or greater) then you do not need to define ivars for your properties in cases like this.
When you @synthesize the property, the ivar will in effect be synthesized also for you. This gets around the "fragile-ivar"...
Installing MSBuild 4.0 without Visual Studio 2010
...looking for in order to install on our build servers so I'm downloading it now and I'll post any further findings after I check it out.
UPDATE: I can confirm that the link provided above does indeed install MSBuild along with other portions of what would constitute an SDK for .NET 4.0. I'm successf...
Accessing MP3 metadata with Python [closed]
...answered Sep 19 '08 at 14:30
OwenOwen
19.2k1313 gold badges3838 silver badges4747 bronze badges
...
Positions fixed doesn't work when using -webkit-transform
...ansformed_div {
/* styles here, background image etc */
}
}
So for now you'll have to do it the old fashioned way, until Webkit browsers catch up to FF.
EDIT: As of 10/24/2012 the bug has not been resolved.
This appears to not be a bug, but an aspect of the specification due to the two e...
Tab Vs Space preferences in Vim
...tab(X), where X is the desired tab width. This is an adequate solution for now, but if anyone can suggest a way of making it easier to call I would be grateful.
I've also created a function that quickly summarizes the current settings, which I have mapped to ctrl-Tab:
nmap <C-Tab> :call TabP...