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Capturing Ctrl-c in ruby
...n a Ruby program ends, it does so by raising SystemExit. When a control-C comes in, it raises Interrupt. Since both SystemExit and Interrupt derive from Exception, your exception handling is stopping the exit or interrupt in its tracks. Here's the fix:
Wherever you can, change
rescue Exception ...
Create an instance of a class from a string
...
Related with great examples: stackoverflow.com/questions/493490/…
– John S.
Apr 24 '13 at 14:23
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How is “=default” different from “{}” for default constructor and destructor?
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This is a completely different question when asking about constructors than destructors.
If your destructor is virtual, then the difference is negligible, as Howard pointed out. However, if your destructor was non-virtual, it's a comp...
Python serialization - Why pickle?
...stream, then you can send it over a socket connection.
Also, there is no "compression" to speak of here...it's just a way to convert from one representation (in RAM) to another (in "text").
About.com has a nice introduction of pickling here.
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Why is nginx responding to any domain name?
...ecific server block.
So in your config, assuming your real domain is REAL.COM, when a user types that in, it will resolve to your server, and since there is no server block for this setup, the server block for FAKE.COM, being the first server block (only server block in your case), will process tha...
What does Provider in JAX-RS mean?
...tion but I cant get it.
If there are resource classes that service the incoming requests, what do Providers do? How are they different from singleton resource classes when I create a persistent resource class (the one that is not per-request)? Or are those classes also providers?
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Detect Click into Iframe using JavaScript
...mouse going into the iframe, and potentially (though not reliably) when it comes back out (ie. trying to work out the difference between the pointer passing over the ad on its way somewhere else versus lingering on the ad).
I imagine a scenario where there is an invisible div on top of the ifram...
How can I sort generic list DESC and ASC?
... = li.OrderByDescending(i => i);
Without Linq
li.Sort((a, b) => a.CompareTo(b)); // ascending sort
li.Sort((a, b) => b.CompareTo(a)); // descending sort
Note that without Linq, the list itself is being sorted. With Linq, you're getting an ordered enumerable of the list but the list its...
How to force Selenium WebDriver to click on element which is not currently visible?
...ector to determine what css applies to your element, make sure you look at computed style):
visibility != hidden
display != none (is also checked against every parent element)
opacity != 0 (this is not checked for clicking an element)
height and width are both > 0
for an input, the attribute t...
“FOUNDATION_EXPORT” vs “extern”
...ook in NSObjCRuntime.h (in Foundation) you will see that FOUNDATION_EXPORT compiles to extern in C, extern "C" in C++, and other things in Win32. So, it's more compatible across languages and operating systems. For many projects, this won't make any difference.
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