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How to avoid having class data shared among instances?
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Although the accepted anwer is spot on, I would like to add a bit description.
Let's do a small exercise
first of all define a class as follows:
class A:
temp = 'Skyharbor'
def __init__(self, x):
self.x = x
def change(self, y):
self.temp = y
So what do we...
How do I determine whether my calculation of pi is accurate?
...ually called us out on this because, initially, I didn't give a sufficient description of how it worked.
So I've pulled this snippet from my blog:
N = # of decimal digits desired
p = 64-bit prime number
Compute A using base 10 arithmetic and B using binary arithmetic.
If A = B, then with "e...
Regular Expression for alphanumeric and underscores
...A-Z, a-z, or underscore (_).
Here is how you would do that:
Tested under php:
$regex = '/^[A-Za-z_][A-Za-z\d_]*$/'
or take this
^[A-Za-z_][A-Za-z\d_]*$
and place it in your development language.
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How do I add files and folders into GitHub repos?
...problem with adding files. I have added readme.txt . Also, I have 3 other PHP files and a folder including images.
9 Answ...
`elif` in list comprehension conditionals
...ension has three conditionals, it could probably be refactored into a more descriptive method. My point is this: martinfowler.com/bliki/FunctionLength.html :)
– Alvaro Cavalcanti
Jan 23 '18 at 21:23
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API vs. Webservice [closed]
...r OCX etc.. They can also be a source code distribution such as Facebooks' PHP api...
– cgp
Apr 30 '09 at 20:06
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How can I change the file type association of an existing file in WebStorm?
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I've had this problem in php storm 8.0.3 on OSX.
I was struggling with a single file that had been added as a text file, but I'd typed in the .js extension.
I tried deleting and recreating, renaming and renaming back, deleting .idea altogether. Not...
How do I get an ISO 8601 date on iOS?
...get the ISO 8601 date string (for example, 2004-02-12T15:19:21+00:00 ) in PHP via date('c') , but how does one get it in Objective-C (iPhone)? Is there a similarly short way to do it?
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Why is JSHINT complaining that this is a strict violation?
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Even so, I think they're being a little misleading in the description. Even if this does end up being undefined, then the actual issue isn't just a strict mode violation. They would do better to give a warning saying that this may be undefined when in "strict mode", leading to a Typ...
MySQL Query GROUP BY day / month / year
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Oh god, if I knew this earlier...so many lines of PHP to do something mysql can do in one line.
– nights
Nov 1 '18 at 3:01
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