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Python - Create a list with initial capacity
...0x slower than other languages due to Python features like decorators etc (https://wiki.python.org/moin/PythonSpeed/PerformanceTips#Data_Aggregation#Data_Aggregation).
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Declaring abstract method in TypeScript
...n of the BaseAnimal class.
Paste this in here to see if it works for you: http://www.typescriptlang.org/Playground/
// The behavioral interface also needs to extend base for substitutability
interface AbstractAnimal extends BaseAnimal {
// encapsulates animal behaviors that must be implemented...
Weak and strong property setter attributes in Objective-C
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Select distinct values from a table field
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Plot correlation matrix into a graph
...lot it using one of the various tutorials out there.
Using base graphics:
http://flowingdata.com/2010/01/21/how-to-make-a-heatmap-a-quick-and-easy-solution/
Using ggplot2:
http://learnr.wordpress.com/2010/01/26/ggplot2-quick-heatmap-plotting/
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How to send FormData objects with Ajax-requests in jQuery? [duplicate]
The XMLHttpRequest Level 2 standard (still a working draft) defines the FormData interface. This interface enables appending File objects to XHR-requests (Ajax-requests).
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awk without printing newline
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Vagrant error : Failed to mount folders in Linux guest
...ang pointed out, update the VBoxGuestAdditions.iso file on your mac:
wget https://www.virtualbox.org/download/testcase/VBoxGuestAdditions_4.3.11-93070.iso
sudo cp VBoxGuestAdditions_4.3.11-93070.iso /Applications/VirtualBox.app/Contents/MacOS/VBoxGuestAdditions.iso
UPDATE (16may2014)
Sinc...
What is the best collation to use for MySQL with PHP? [closed]
...You can read more on specific unicode character sets on the MySQL manual - http://dev.mysql.com/doc/refman/5.0/en/charset-unicode-sets.html
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What are the differences between utf8_general_ci and utf8_unicode_ci? [duplicate]
... always use utf8_unicode_ci. Well, unless you want wrong answers.
Source: http://forums.mysql.com/read.php?103,187048,188748#msg-188748
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