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Grep characters before and after match?
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3 characters before and 4 characters after
$> echo "some123_string_and_another" | grep -o -P '.{0,3}string.{0,4}'
23_string_and
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How can I manipulate the strip text of facet_grid plots?
...ts. My question
is similar to a question on plot titles , but I'm specifically concerned with
manipulating not the plot title but the text that appears in facet titles (strip_h).
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Capture characters from standard input without waiting for enter to be pressed
...oo much on the terminal used that may be connected with stdin (they are usually line buffered). You can, however use a library for that:
conio available with Windows compilers. Use the _getch() function to give you a character without waiting for the Enter key. I'm not a frequent Windows developer...
How can I list ALL DNS records?
Is there any way I can list ALL DNS records for a domain?
8 Answers
8
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Remove all the children DOM elements in div
...by references from other JS objects. For example: a gfx surface references all its children, a group references all its children too, and so on. Deleting just DOM nodes is not enough.
– Eugene Lazutkin
Jul 2 '13 at 22:16
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How to validate a url in Python? (Malformed or not)
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Actually, I think this is the best way.
from django.core.validators import URLValidator
from django.core.exceptions import ValidationError
val = URLValidator(verify_exists=False)
try:
val('http://www.google.com')
except Val...
How to stop /#/ in browser with react-router?
... Note that history is a stand-alone package you'll need to install.
– Jan Klimo
Oct 24 '15 at 15:01
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Intro to GPU programming [closed]
Everyone has this huge massively parallelized supercomputer on their desktop in the form of a graphics card GPU.
9 Answers
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A monad is just a monoid in the category of endofunctors, what's the problem?
...lete and Mostly Wrong History of Programming Languages, in which he fictionally attributes it to Philip Wadler.
The original quote is from Saunders Mac Lane in Categories for the Working Mathematician, one of the foundational texts of Category Theory. Here it is in context, which is probably the bes...
Detect Android phone via Javascript / jQuery
...re reported by Kindle Fire HD devices do not contain the word 'android' at all.
– djbp
Jun 11 '13 at 13:54
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