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Keep-alive header clarification
...puter A and server F")?
A TCP connection is recognized by source IP and port and destination IP and port. Your OS, all intermediate session-aware devices and the server's OS will recognize the connection by this.
HTTP works with request-response: client connects to server, performs a request and ...
implements Closeable or implements AutoCloseable
...have posted, you don't need to implement AutoCloseable.
You only have to (or should) implement Closeable or AutoCloseable if you are about to implement your own PrintWriter, which handles files or any other resources which needs to be closed.
In your implementation, it is enough to call pw.close()...
Understanding dispatch_async
...he default queue over the main queue is to run tasks in the background.
For instance, if I am downloading a file from the internet and I want to update the user on the progress of the download, I will run the download in the priority default queue and update the UI in the main queue asynchronously...
What is the difference between '&' and ',' in Java generics?
While reading the Java official tutorial about generics, I found that you can restrict the type argument (in this case is T ) to extend a class and/or more interfaces with the 'and' operator ( & ) like this:
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ValueError: invalid literal for int() with base 10: ''
...the file is not blank, it reads the next four lines. Calculations are performed on those lines and then the next line is read. If that line is not empty it continues. However, I am getting this error:
...
What would cause an algorithm to have O(log n) complexity?
...limited, and when log terms show up in the equation it throws me off even more.
6 Answers
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“Failed to load platform plugin ”xcb“ ” while launching qt5 app on linux without qt installed
I wrote application for linux which uses Qt5.
17 Answers
17
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Resync git repo with new .gitignore file
Is it possible to "refresh" a git repository after updating the gitignore file?
3 Answers
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Remove all special characters from a string [duplicate]
...
This should do what you're looking for:
function clean($string) {
$string = str_replace(' ', '-', $string); // Replaces all spaces with hyphens.
return preg_replace('/[^A-Za-z0-9\-]/', '', $string); // Removes special chars.
}
Usage:
echo clean('a|"b...
Changing .prop using jQuery does not trigger .change event
...and not when value is modified using code.
Here you need to use .change() or .trigger("change") after changing the property:
$('input[type="checkbox"][name="something"]').prop("checked", false).change();
Working Demo
sha...