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How can I access “static” class variables within class methods in Python?
... bar = 1
@classmethod
def bah(cls):
print cls.bar
Now if bah() has to be instance method (i.e. have access to self), you can still directly access the class variable.
class Foo(object):
bar = 1
def bah(self):
print self.bar
...
How to update gradle in android studio?
...of course I updated. After the installation I restarted Android Studio but now I get this message:
14 Answers
...
Is < faster than
...- B < 0
A = B --> A - B = 0
A > B --> A - B > 0
Now, when A < B the subtraction has to borrow a high-bit for the subtraction to be correct, just like you carry and borrow when adding and subtracting by hand. This "borrowed" bit was usually referred to as the carry bit a...
What's the difference between passing by reference vs. passing by value?
...by value vs. pass by reference" distinction as defined in the CS theory is now obsolete because the technique originally defined as "pass by reference" has since fallen out of favor and is seldom used now.1
Newer languages2 tend to use a different (but similar) pair of techniques to achieve the sam...
How to customize a requirements.txt for multiple environments?
...e for prod...
-r common.txt
prod_req==1.0
...
Outside of Heroku, you can now setup environments like this:
pip install -r requirements/dev.txt
or
pip install -r requirements/prod.txt
Since Heroku looks specifically for "requirements.txt" at the project root, it should just mirror prod, like ...
Total width of element (including padding and border) in jQuery
...t the time where not adequate by themselves to calculate the whole width.
Now, as J-P correctly states, jQuery has the functions outerWidth and outerHeight which include the border and padding by default, and also the margin if the first argument of the function is true
[Original answer]
The w...
How to read and write into file using JavaScript?
...ion on the Javascript File class
Edit: That link was to the Sun docs that now have been moved by Oracle.
To keep up with the times here's the node.js documentation for the FileSystem class: http://nodejs.org/docs/latest/api/fs.html
Edit(2): You can read files client side now with HTML5: http://ww...
Can someone explain the right way to use SBT?
...ting out off the closet on this! I don't understand SBT. There, I said it, now help me please.
4 Answers
...
How to concatenate two strings in C++?
...td::string greet = s + " World"; //concatenation easy!
Easy, isn't it?
Now if you need char const * for some reason, such as when you want to pass to some function, then you can do this:
some_c_api(s.c_str(), s.size());
assuming this function is declared as:
some_c_api(char const *input, si...
Ignore whitespace in HTML [duplicate]
...
Apparently that property has been renamed a lot; as of now, the page says "Major Changes...February 2011...Renamed ‘white-space-collapsing’ to ‘bikeshedding’."
– ysth
Jun 28 '11 at 19:08
...