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Convert a list to a dictionary in Python
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275
b = dict(zip(a[::2], a[1::2]))
If a is large, you will probably want to do something like the ...
Difference between getAttribute() and getParameter()
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getParameter() returns http request parameters. Those passed from the client to the server. For...
java.lang.OutOfMemoryError: GC overhead limit exceeded [duplicate]
... that creates several (hundreds of thousands) HashMap objects with a few (15-20) text entries each. These Strings have all to be collected (without breaking up into smaller amounts) before being submitted to a database.
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How do I get the current line number?
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In .NET 4.5 / C# 5, you can get the compiler to do this work for you, by writing a utility method that uses the new caller attributes:
using System.Runtime.CompilerServices;
static void SomeMethodSomewhere()
{
ShowMessage("Boo");
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Create subdomains on the fly with .htaccess (PHP)
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The quick rundown
You need to create a wildcard domain on your DNS server *.website.com
Then i...
SVN checkout ignore folder
...ly ignore folders on a checkout, but you can use sparse checkouts in svn 1.5. For example:
$ svn co http://subversion/project/trunk my_checkout --depth immediates
This will check files and directories from your project trunk into 'my_checkout', but not recurse into those directories. Eg:
$ cd ...
PostgreSQL database default location on Linux
... this:
[root@server1 ~]# ps auxw | grep postgres | grep -- -D
postgres 1535 0.0 0.1 39768 1584 ? S May17 0:23 /usr/local/pgsql/bin/postgres -D /usr/local/pgsql/data
Note that it is possible, though not very frequent, to run two instances of the same PostgreSQL server (same binar...
How do I manage MongoDB connections in a Node.js web application?
...ul T. Rawkeen
3,61022 gold badges3030 silver badges4545 bronze badges
answered Jan 22 '13 at 17:41
MaxMax
10.2k55 gold badges2121 ...
No internet on Android emulator - why and how to fix? [closed]
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35
If by "use internet", you mean you can not access the internet from an activity while testing on...
How can foreign key constraints be temporarily disabled using T-SQL?
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edited May 23 '17 at 11:55
Community♦
111 silver badge
answered Oct 2 '08 at 8:50
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