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What are the underlying data structures used for Redis?
...trings, a Set is a set of strings, and so forth.
A Redis string is a good idea in all the obvious scenarios where you want to store an HTML page, but also when you want to avoid converting your already encoded data. So for instance, if you have JSON or MessagePack you may just store objects as stri...
What are metaclasses in Python?
...sses, you need to master classes in Python. And Python has a very peculiar idea of what classes are, borrowed from the Smalltalk language.
In most languages, classes are just pieces of code that describe how to produce an object. That's kinda true in Python too:
>>> class ObjectCreator(obje...
Type-juggling and (strict) greater/lesser-than comparisons in PHP
...+1 let alone the scrollable "tables" with the fixed-column headers - nifty idea ;)
– hakre
Apr 6 '13 at 14:56
Does one...
Call a Server-side Method on a Resource in a RESTful Way
...
I take contention with the idea that calling an action on a server, designated as an action in the URL, is not RESTful. POST was designed for "providing a block of data...to a data-handling process". It seems a lot of folks distinguish resources from ...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...The angle between two lines is the angle rotated by the user.
Figure 5. Idea of implementing rotation gesture. Blue points are the previous locations of fingers, and red points are the current locations of fingers. The angle rotated is the angle between the two lines formed by the fingers.
The a...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...The angle between two lines is the angle rotated by the user.
Figure 5. Idea of implementing rotation gesture. Blue points are the previous locations of fingers, and red points are the current locations of fingers. The angle rotated is the angle between the two lines formed by the fingers.
The a...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...The angle between two lines is the angle rotated by the user.
Figure 5. Idea of implementing rotation gesture. Blue points are the previous locations of fingers, and red points are the current locations of fingers. The angle rotated is the angle between the two lines formed by the fingers.
The a...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...The angle between two lines is the angle rotated by the user.
Figure 5. Idea of implementing rotation gesture. Blue points are the previous locations of fingers, and red points are the current locations of fingers. The angle rotated is the angle between the two lines formed by the fingers.
The a...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...The angle between two lines is the angle rotated by the user.
Figure 5. Idea of implementing rotation gesture. Blue points are the previous locations of fingers, and red points are the current locations of fingers. The angle rotated is the angle between the two lines formed by the fingers.
The a...
How to detect a Christmas Tree? [closed]
...s too, I have nothing to say against you, you posted them after me and my "idea" was not so original to say that you just copied me. But Marvin was the only one who posted before me and edited is solution after seeing mine using the same algorithm... at least he could have said "Yeah, I liked your s...