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What's the difference between => , ()=>, and Unit=>
... cb: => Unit) = {
val instance = new Scheduled(time, cb)
Thread.sleep(time*1000)
instance.runCb
}
}
In REPL, we can get something like this:
scala> Scheduled(10, println("a")); Scheduled(1, println("b"))
a
b
Our simulation doesn't behave exactly the same as SetTimeOut, becau...
Convert line-endings for whole directory tree (Git)
...mands
sfk mkcd - create command to reenter directory
sfk sleep - delay execution for milliseconds
sfk pause - wait for user input
sfk label - define starting point for a script
sfk tee - split command output in two streams
sfk tofile ...
deciding among subprocess, multiprocessing, and thread in Python?
...).
Basically it's all driven by the ability to make a request of the OS to sleep pending any activity on a list of file descriptors or some timeout.
Awakening from each of these calls to select() is an event --- either one involving input available (readable) on some number of sockets or file descri...
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
...esponse.url)
#Wait for javscript to load in Selenium
time.sleep(2.5)
#Do some crawling of javascript created content with Selenium
sel.get_text("//div")
yield item
# Snippet imported from snippets.scrapy.org (which no longer works)
# author: wynbennett
# da...
Why is it bad style to `rescue Exception => e` in Ruby?
...running this program, and trying to CTRLC or kill it:
loop do
begin
sleep 1
eval "djsakru3924r9eiuorwju3498 += 5u84fior8u8t4ruyf8ihiure"
rescue Exception
puts "I refuse to fail or be stopped!"
end
end
Rescuing from Exception isn't even the default. Doing
begin
# iceberg!
resc...
Singleton: How should it be used
...or just doesn't happen. If it does, the correct response is to go home and sleep for 12-20 hours and hope you feel better.
If only one object is needed, simply create one instance. If one object should be globally accessible, make it a global. But that doesn't mean it should be impossible to create...
Protecting executable from reverse engineering?
... and undocumented 6502 instructions and so on... And then cry yourself to sleep, because you are not going to implement anything nearly so elaborate and they all got cracked eventually.
– Nemo
Jun 26 '11 at 2:01
...
Is JavaScript guaranteed to be single-threaded?
...n't mean the event thread stops pumping events. Just means your script is sleeping while the alert is on the screen, but it has to keep pumping events in order to draw the screen. While an alert is up the event pump is running which means it's entirely correct to keep sending out events. At best ...
source of historical stock data [closed]
..."/quotes.csv");
File.Delete("quotes.csv");
Thread.Sleep(10000); // 10 seconds
}
}
catch (Exception exc)
{
Console.WriteLine(exc.ToString());
Console.ReadKey();
}
}
Database:
On the database side I use an OleDb connection to the CSV f...
Qt events and signal/slots
... select() call of the operating system. That call makes the application “sleep”, while it passes a bunch of sockets or files or whatever to the kernel asking for: if something changes on these, let the select() call return. – And the kernel, as the master of the world, knows when that happens....