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The tilde operator in Python
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One should note that in the case of array indexing, array[~i] amounts to reversed_array[i]. It can be seen as indexing starting from the end of the array:
[0, 1, 2, 3, 4, 5, 6, 7, 8]
^ ^
i ...
Convert base64 string to ArrayBuffer
... every byte sequence is valid unicode b) not every character in unicode is one byte so bytes[i] = binary_string.charCodeAt(i); can be wrong
– mixture
Aug 29 '18 at 10:41
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How can I select an element by name with jQuery?
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Just out of curiosity, how would one write this as NOT tcol1, like what if they wanted to hide the columns other than the columns named, tcol1?
– HPWD
Feb 3 '12 at 17:52
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virtualenv --no-site-packages and pip still finding global packages?
...s, until I realized that (long before I had discovered virtualenv), I had gone adding directories to the PYTHONPATH in my .bashrc file. As it had been over a year beforehand, I didn't think of that straight away.
share
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RedirectToAction between areas?
...was helpful to me. Just wanted to add below:
If you want to redirect from one area to another area, above code works well.
And, if you want to redirect from one area to a controller/view which is not there in the area folder (i.e. in most cases, your front end), you can specify area = "".
i.e.
r...
How can I clear previous output in Terminal in Mac OS X?
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If you accidentally pressed this, how would one go about viewing the cleared buffer?
– Joshua Pinter
Nov 4 '14 at 19:41
4
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Binding IIS Express to an IP Address [duplicate]
...ndinginformation attributes in the applicationhost.conifg file, choose the one that belong to your site!
– Ghasan
May 23 '14 at 0:16
7
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Given a class, see if instance has method (Ruby)
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I don't know why everyone is suggesting you should be using instance_methods and include? when method_defined? does the job.
class Test
def hello; end
end
Test.method_defined? :hello #=> true
NOTE
In case you are coming to Ruby from anot...
Modular multiplicative inverse function in Python
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Maybe someone will find this useful (from wikibooks):
def egcd(a, b):
if a == 0:
return (b, 0, 1)
else:
g, y, x = egcd(b % a, a)
return (g, x - (b // a) * y, y)
def modinv(a, m):
g, x, y = egcd(a, ...
A CSS selector to get last visible div
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You could select and style this with JavaScript or jQuery, but CSS alone can't do this.
For example, if you have jQuery implemented on the site, you could just do:
var last_visible_element = $('div:visible:last');
Although hopefully you'll have a class/ID wrapped around the divs you're sel...