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How does Django's Meta class work?
...d controlled by a metaclass called ModelBase, you can see that code here:
https://github.com/django/django/blob/master/django/db/models/base.py#L61
And one of the things that ModelBase does is to create the _meta attribute on every Django model which contains validation machinery, field details, s...
Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM
...compression issue first. There are some relevant tests already available:
http://www.theeggeadventure.com/wikimedia/index.php/Java_Data_Compression
"I ran a test to compress one million consecutive integers using
various forms of compression. The results are as follows:"
None 4000027
De...
Specify custom Date format for colClasses argument in read.table/read.csv
...eUploader: {
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How to check if a table contains an element in Lua?
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Does ARC support dispatch queues?
...eUploader: {
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How to remove EXIF data without recompressing the JPEG?
...tadata, camera info... everything!) from JPEG files, but I don't want to recompress it, as recompressing the JPEG will degrade the quality, as well as usually increasing the file size.
...
Hashing a string with Sha256
... in the Windows world for historical reasons but not used by anyone else). http://msdn.microsoft.com/en-us/library/system.text.encoding.unicode.aspx
If you inspect your bytes array, you'll see that every second byte is 0x00 (because of the double-wide encoding).
You should be using Encoding.UTF8.G...
Django REST Framework: adding additional field to ModelSerializer
...
class Meta:
model = Foo
fields = ('id', 'name', 'my_field')
http://www.django-rest-framework.org/api-guide/fields/#serializermethodfield
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What is the difference between a static and a non-static initialization code block
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This is directly from http://www.programcreek.com/2011/10/java-class-instance-initializers/
1. Execution Order
Look at the following class, do you know which one gets executed first?
public class Foo {
//instance variable initializer
Str...
R: += (plus equals) and ++ (plus plus) equivalent from c++/c#/java, etc.?
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