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When monkey patching an instance method, can you call the overridden method from the new implementat
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EDIT: It has been 9 years since I originally wrote this answer, and it deserves some cosmetic surgery to keep it current.
You can see the last version before the edit here.
You can’t call the overwritten method by name or keyword. That’s one of the ma...
Downloading MySQL dump from command line
...y from Linode because I don't have the Linux sysadmin skills necessary; before I complete the transition to a more noob-friendly service, I need to download the contents of a MySQL database. Is there a way I can do this from the command line?
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Count number of objects in list [closed]
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length(x)
Get or set the length of vectors (including lists) and factors, and of any other R object for which a method has been defined.
lengths(x)
Get the length of each element of a list or atomic vector (is.atomic) as an integer o...
403 Forbidden vs 401 Unauthorized HTTP responses
For a web page that exists, but for which a user does not have sufficient privileges (they are not logged in or do not belong to the proper user group), what is the proper HTTP response to serve?
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Is the list of Python reserved words and builtins available in a library?
Is the list of Python reserved words and builtins available in a library? I want to do something like:
1 Answer
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Class method differences in Python: bound, unbound and static
...ause of that, a call to your version of method_two will fail with a TypeError
>>> a_test = Test()
>>> a_test.method_two()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: method_two() takes no arguments (1 given)
You can change th...
What is the difference between currying and partial application?
...ied, becomes:
function f(x) { lambda(y) { lambda(z) { z(x(y)); } } }
In order to get the full application of f(x,y,z), you need to do this:
f(x)(y)(z);
Many functional languages let you write f x y z. If you only call f x y or f(x)(y) then you get a partially-applied function—the return valu...
Getting output of system() calls in Ruby
...can then assign the value to a variable like so:
output = `ls`
p output
or
printf output # escapes newline chars
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Cleanest way to toggle a boolean variable in Java?
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@user515655 - The language defines a -- operator (actually, two of them, along with two ++ operators), but doesn't define a !! operator. If you want -(-(integer)) you can use white space between the two - characters. But !! parses as two ! operators regardless of white s...
Should I use tag for icons instead of ? [closed]
Facebook's HTML and Twitter Bootstrap HTML (before v3) both use the <i> tag to display icons.
7 Answers
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