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Change values while iterating
...want is not possible.
The reason for this is that range copies the values from the slice you're iterating over.
The specification about range says:
Range expression 1st value 2nd value (if 2nd variable is present)
array or slice a [n]E, *[n]E, or []E inde...
What are the differences and similarities between ffmpeg, libav, and avconv?
...mmunity. It is worth noting that the maintainer for Debian/Ubuntu switched from FFmpeg to Libav on his own accord due to being involved with the Libav fork.
The real ffmpeg vs the fake one
For a while both Libav and FFmpeg separately developed their own version of ffmpeg.
Libav then renamed thei...
java.net.ConnectException: Connection refused
I'm trying to implement a TCP connection, everything works fine from the server's side but when I run the client program (from client computer) I get the following error:
...
How do I get PHP errors to display?
... errors you need to:
1. Have these lines in the PHP script you're calling from the browser (typically index.php):
error_reporting(E_ALL);
ini_set('display_errors', '1');
2.(a) Make sure that this script has no syntax errors
—or—
2.(b) Set display_errors = On in your php.ini
Otherwise, it ...
Why is Scala's immutable Set not covariant in its type?
... the method works just like Set's. So there is nothing really stopping Set from being co-variant, except a design decision.
– Daniel C. Sobral
Jul 24 '09 at 2:44
6
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jQuery - Detect value change on hidden input field
...ice, if I remove the code, no triggers w/e.!!
– Janx from Venezuela
Aug 13 '13 at 22:02
1
To make...
What does the star operator mean, in a function call?
...are not operators. Operators are used in expressions to create new values from existing values (1+2 becomes 3, for example. The * and ** here are part of the syntax of function declarations and calls.
share
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What Automatic Resource Management alternatives exist for Scala?
...eader.readLine()).map(_ -> ())).toList
}
You can find more examples from Using doc.
A utility for performing automatic resource management. It can be used to perform an operation using resources, after which it releases the resources in reverse order of their creation.
...
Convert a timedelta to days, hours and minutes
I've got a timedelta. I want the days, hours and minutes from that - either as a tuple or a dictionary... I'm not fussed.
7...
$.focus() not working
...e. The reason that's not working is simply because it's not stealing focus from the dev console. If you run the following code in your console and then quickly click in your browser window after, you will see it focus the search box:
setTimeout(function() { $('input[name="q"]').focus() }, 3000);
...