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Determine if 2 lists have the same elements, regardless of order? [duplicate]
...the esoteric case of unhashable and unsortable elements.
def equal_ignore_order(a, b):
""" Use only when elements are neither hashable nor sortable! """
unmatched = list(b)
for element in a:
try:
unmatched.remove(element)
except ValueError:
return...
How to stop and restart memcached server?
...
Using root, try something like this:
/etc/init.d/memcached restart
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Using PHP with Socket.io
...eck this one. This is really important! You need this javascript libary in order for you client.php or client.html to communicate with the server.php when you run it.
https://github.com/walkor/phpsocket.io/tree/master/examples/chat/public/socket.io-client
I just copy and pasted that socket.io-clie...
grant remote access of MySQL database from any IP address
...L server
Change mysql config
Start with editing mysql config file
vim /etc/mysql/my.cnf
Comment out following lines.
#bind-address = 127.0.0.1
#skip-networking
If you do not find skip-networking line, add it and comment out it.
Restart mysql server.
~ /etc/init.d/mysql restart
...
Which data type for latitude and longitude?
...ongitude and latitude, same as in GPS. More about it: http://epsg.io/4326
Order is Longitude, Latitude - so if you plot it as the map, it is (x, y).
To find closest point you need first to create spatial index:
create index on your_table using gist (geog);
and then request, say, 5 closest to a ...
Maven dependency for Servlet 3.0 API?
...t-api? Because it's fun to add <excludes> for the old artifactId (in order to prevent getting both the old and new servlet api on your classpath if one of your dependencies still depends on the old one)? :)
– Geoffrey De Smet
Aug 19 '13 at 12:48
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What is meant by Resource Acquisition is Initialization (RAII)?
...cquired by invoking their constructors and released implicitly (in reverse order of acquiring) by invoking their destructors.
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What is an initialization block?
...ization blocks.
This code should illustrate the use of them and in which order they are executed:
public class Test {
static int staticVariable;
int nonStaticVariable;
// Static initialization block:
// Runs once (when the class is initialized)
static {
Syste...
How to differ sessions in browser-tabs?
... Just a very late add-on, as to why: because I need to know this in order to know WHICH page on my site, for example, a user is focused on, and not just that they've gone from page to page (instead they went from tab to tab).
– Oliver Williams
Sep 23 '18...
Java 7 language features with Android
... @Amit because he's come to realize Android is different from Java and in order to work with Android he has to use the tools that is offered.
– Warpzit
Oct 30 '12 at 9:01
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