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Python memoising/deferred lookup property decorator
...f the instance, but they're a real bottleneck to calculate that first time and only really accessed for special cases. Hence they can also be cached after they've been retrieved from the database (this therefore fits the definition of memoisation where the input is simply "no input").
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In where shall I use isset() and !empty()
...TRUE , therefore isset() is not an effective way to validate text inputs and text boxes from a HTML form.
17 Answers
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Outputting data from unit test in python
...ery late answer for someone that, like me, comes here looking for a simple and quick answer.
In Python 2.7 you could use an additional parameter msg to add information to the error message like this:
self.assertEqual(f.bar(t2), 2, msg='{0}, {1}'.format(t1, t2))
Offical docs here
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Node.js on multi-core machines
... must miss something - isn't Node.js tuned only to run on a single process and thread?
15 Answers
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How to get next/previous record in MySQL?
Say I have records with IDs 3,4,7,9 and I want to be able to go from one to another by navigation via next/previous links. The problem is, that I don't know how to fetch record with nearest higher ID.
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Error installing libv8: ERROR: Failed to build gem native extension
...e an error similar to what I was getting before with libv8 "make sure such and such succeeds before bundling" but when I try to run 'gem install therubyracer' I get "Failed to build gem native extension." error
– sixty4bit
Jan 14 '15 at 3:45
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How do you run your own code alongside Tkinter's event loop?
My little brother is just getting into programming, and for his Science Fair project, he's doing a simulation of a flock of birds in the sky. He's gotten most of his code written, and it works nicely, but the birds need to move every moment .
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What happens when there's insufficient memory to throw an OutOfMemoryError?
I am aware that every object requires heap memory and every primitive/reference on the stack requires stack memory.
11 Answ...
Extract substring using regexp in plain bash
I'm trying to extract the time from a string using bash, and I'm having a hard time figuring it out.
4 Answers
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'No Transport' Error w/ jQuery ajax call in IE
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I tested this on Windows Mobile 7.
After LOTS of time spent to understand, I finally found this:
http://bugs.jquery.com/ticket/10660
The Solution is simple, just set this:
$.support.cors = true;
and Ajax cross domain requests will work!
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