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STL or Qt containers?
...
I started by using std::(w)string and the STL containers exclusively and converting to/from the Qt equivalents, but I have already switched to QString and I find that I'm using Qt's containers more and more.
When it comes to strings, QString offers mu...
What do 'statically linked' and 'dynamically linked' mean?
... program
#include <stdio.h>
int main(void)
{
printf("This is a string\n");
return 0;
}
Dynamically link the C program
gcc simpleprog.c -o simpleprog
And run file on the binary:
file simpleprog
And that will show it is dynamically linked something along the lines of:
"simple...
Get all attributes of an element using jQuery
...arguments);
};
})($.fn.attr);
Usage:
var $div = $("<div data-a='1' id='b'>");
$div.attr(); // { "data-a": "1", "id": "b" }
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How can I select an element with multiple classes in jQuery?
... also swap the classes:
$('.b.a')
So to match a div element that has an ID of a with classes b and c, you would write:
$('div#a.b.c')
(In practice, you most likely don't need to get that specific, and an ID or class selector by itself is usually enough: $('#a').)
...
Android: Last line of textview cut off
...t is needed to disable baseline alignment for the layout by setting:
android:baselineAligned="false"
or in the code:
layout.setBaselineAligned(false);
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Check if something is (not) in a list in Python
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@Zack: if you didn't know about this, you could just do if not ELEMENT in COLLECTION:
– ninjagecko
May 2 '12 at 0:23
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How to terminate a python subprocess launched with shell=True
...al to all the process in the groups. For that, you should attach a session id to the parent process of the spawned/child processes, which is a shell in your case. This will make it the group leader of the processes. So now, when a signal is sent to the process group leader, it's transmitted to all o...
java.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has
...lled in the very same method.
protected void doXxx() {
out.write("some string");
// ...
forward(); // Fail!
}
The response buffer size defaults in most server to 2KB, so if you write more than 2KB to it, then it will be committed and forward() will fail the same way:
java.lang.Illegal...
Hibernate lazy-load application design
...aused by lazyness) you're hinting to, but for me the biggest pain is to avoid losing session context in my own application caches. Typical case:
object foo is loaded and put into a map;
another thread takes this object from the map and calls foo.getBar() (something that was never called before and...
Confused by python file mode “w+”
...to the top of the file before reading, otherwise you'll just read an empty string
data = f.read() # Returns 'somedata\n'
Note the f.seek(0) -- if you forget this, the f.read() call will try to read from the end of the file, and will return an empty string.
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