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Explaining Python's '__enter__' and '__exit__'
..._future__ import with_statement at the top of the file if you're on Python 2.5).
with DatabaseConnection() as mydbconn:
# do stuff
PEP343 -- The 'with' statement' has a nice writeup as well.
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SQL Server Configuration Manager not found
After installing SQL Server 2008, I cannot find the SQL Server Configuration Manager in Start / SQL Server 2008 / Configuration Tools menu.
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Convert string to binary in python
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127
Something like this?
>>> st = "hello world"
>>> ' '.join(format(ord(x), 'b')...
Creating a DateTime in a specific Time Zone in c#
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219
Jon's answer talks about TimeZone, but I'd suggest using TimeZoneInfo instead.
Personally I l...
How to make graphics with transparent background in R using ggplot2?
I need to output ggplot2 graphics from R to PNG files with transparent background. Everything is ok with basic R graphics, but no transparency with ggplot2:
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Shorthand way for assigning a single field in a record, while copying the rest of the fields?
..., b :: Int, c :: String } -- define a Foo
> let foo = Foo { a = 1, b = 2, c = "Hello" } -- create a Foo
> let updateFoo x = x { c = "Goodbye" } -- function to update Foos
> updateFoo foo -- update the Foo
Foo {a = 1, b = 2, c = "G...
How to test chrome extensions?
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+250
Yes, the existing frameworks are pretty useful..
In the recent past, I have placed all my tests on a "test" page that was embedded ...
What are the differences between segment trees, interval trees, binary indexed trees and range trees
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2 Answers
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Prevent any form of page refresh using jQuery/Javascript
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192
#1 can be implemented via window.onbeforeunload.
For example:
<script type="text/javascri...
How to wait until an element exists?
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edited Jul 15 at 22:27
Khushraj Rathod
19722 silver badges1414 bronze badges
answered May 24 '1...