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What blocks Ruby, Python to get Javascript V8 speed? [closed]
...mple, for certain operations, Rubinius's Hash class is faster than YARV's. Now, this doesn't sound terribly exciting until you realize that Rubinius's Hash class is implemented in 100% pure Ruby, while YARV's is implemented in 100% hand-optimized C.
So, at least in some cases, Rubinius can generate...
How to activate an Anaconda environment
...as:
set PATH=C:\Anaconda\envs\py33\Scripts;C:\Anaconda\envs\py33;%PATH%
Now it should work in the command window:
activate py33
The line above is the Windows equivalent to the code that normally appears in the tutorials for Mac and Linux:
$ source activate py33
More info:
https://groups.goo...
Change IPython/Jupyter notebook working directory
...esn't work please try working from the earlier version. Very conveniently, now "Start in:" can be empty in my tests with 4.1.1 and later. Perhaps they read this entry on SO and liked it, so long upvotes, nobody needs this anymore :)
...
How to get the full url in Express?
...'X-Forwarded-Protocol') is set and has the value https, in which case you know that's your protocol
The host comes from req.get('host') as Gopal has indicated
Hopefully you don't need a non-standard port in your URLs, but if you did need to know it you'd have it in your application state because it...
Are JavaScript strings immutable? Do I need a “string builder” in JavaScript?
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Findings
Nowadays, all evergreen browsers handle string concatenation well. Array.join only helps IE 11
Overall, Opera is fastest, 4 times as fast as Array.join
Firefox is second and Array.join is only slightly slower in FF but consi...
Constant Amortized Time
... up in a room.
And, you have long hands and legs, as much long as you need now or in future.
And, you have to fill all in one room, so it is easy to lock it.
So, you go right to the end/ corner of the room and start stacking them.
As you stack them, slowly the room will run out of space.
However, a...
Good geometry library in python? [closed]
...
Update to SymPy now contains 3D libraries as well
– control_fd
Jun 9 '16 at 17:12
...
How to keep a git branch in sync with master
.... That was written by the Git maintainer, so it's probably fair to say he knows what he's talking about with regard to this particular topic.
– Dan Moulding
Mar 12 '14 at 23:44
2
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Building a minimal plugin architecture in Python
...p can poll and then use imp.load_module to pick up files, look for a well-known entry point possibly with module-level config params, and go from there. I use file-monitoring stuff for a certain amount of dynamism in which plugins are active, but that's a nice-to-have.
Of course, any requirement th...
Most efficient way to check for DBNull and then assign to a variable?
...
Old now, but I've recently seen a number of cases where this was exactly what the profiler said to fix. Imagine evaluating large data sets, where every cell needs to make this check. Optimizing that can can reap big rewards. But ...