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How to use arguments from previous command?
... press the digit (this will count from the end of the list of arguments.
Em>x m>ample:
Enter the following command
$ echo a b c d e f g
a b c d e f g
Now at the nem>x m>t prompt, type echo (with a following space), then
Press Alt-Ctrl-y and you'll now see:
$ echo a
without pressing Enter yet, do the ...
Scala type programming resources
...digms in type-level programming: "object-oriented" and "functional". Most em>x m>amples linked to from here follow the object-oriented paradigm.
A good, fairly simple em>x m>ample of type-level programming in the object-oriented paradigm can be found in apocalisp's implementation of the lambda calculus, repl...
How does deriving work in Haskell?
...se to implement it in its own way. There's lots of work on how to make it em>x m>tensible however.
Derive is a tool for Haskell to let you write your own deriving mechanisms.
GHC used to provide a derivable type class em>x m>tension called Generic Classes, but it was rarely used, as it was somewhat weak.
Th...
How does zip(*[iter(s)]*n) work in Python?
...
iter() is an iterator over a sequence. [m>x m>] * n produces a list containing n quantity of m>x m>, i.e. a list of length n, where each element is m>x m>. *arg unpacks a sequence into arguments for a function call. Therefore you're passing the same iterator 3 times to zip(), and...
adding header to python requests module
... do this to set a header for all future gets for the Session object, where m>x m>-test will be in all s.get() calls:
s = requests.Session()
s.auth = ('user', 'pass')
s.headers.update({'m>x m>-test': 'true'})
# both 'm>x m>-test' and 'm>x m>-test2' are sent
s.get('http://httpbin.org/headers', headers={'m>x m>-test2': 'true...
How can I display just a portion of an image in HTML/CSS?
Let's say I want a way to display just the the center 50m>x m>50pm>x m> of an image that's 250m>x m>250pm>x m> in HTML. How can I do that. Also, is there a way to do this for css:url() references?
...
Creating a range of dates in Python
...arting with today, and going back an arbitrary number of days, say, in my em>x m>ample 100 days. Is there a better way to do it than this?
...
How can I visualize per-character differences in a unified diff file?
...s named foo.diff or foo.patch this happens automatically; otherwise type M-m>x m> diff-mode RET), go to the hunk you are interested in and hit C-c C-b for refine-hunk. Or step through the file one hunk at a time with M-n; that will do the refining automatically.
...
Javascript and regem>x m>: split string and keep the separator
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Use (positive) lookahead so that the regular em>x m>pression asserts that the special character em>x m>ists, but does not actually match it:
string.split(/<br \/>(?=&#?[a-zA-Z0-9]+;)/g);
See it in action:
var string = "aaaaaa<br />† bbbb<br /&...
Getting vertical gridlines to appear in line plot in matplotlib
...ame from an sql query in python to generate a line plot with dates on the m>x m>-am>x m>is. I'm not sure why they do not appear on the dates and I have tried to search for an answer to this but couldn't find one.
...