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Is there a portable way to get the current username in Python?
...the current user's username in Python (i.e., one that works under both Linum>x m> and Windows, at least). It would work like os.getuid :
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Why does Stream not implement Iterable?
...hing that can only be used once — more like an Iterator.
If Stream em>x m>tended Iterable then em>x m>isting code might be surprised when it receives an Iterable that throws an Em>x m>ception the
second time they do for (element : iterable).
...
Should I use multiplication or division?
...
Python:
time python -c 'for i in m>x m>range(int(1e8)): t=12341234234.234 / 2.0'
real 0m26.676s
user 0m25.154s
sys 0m0.076s
time python -c 'for i in m>x m>range(int(1e8)): t=12341234234.234 * 0.5'
real 0m17.932s
user 0m16.481s
sys 0m0.048s
multi...
How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
... seem to affect image drawing.
//works with shapes but not with images
ctm>x m>.fillStyle = "rgba(255, 255, 255, 0.5)";
I have concluded that setting the globalCompositeOperation works with images.
//works with images
ctm>x m>.globalCompositeOperation = "lighter";
I wonder if there is some kind third ...
How can I determine if a JavaScript variable is defined in a page? [duplicate]
...ariable is defined in a page? Suppose I want to check if a variable named "m>x m>" is defined in a page, if I do if(m>x m> != null) , it gives me an error.
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How to get all subsets of a set? (powerset)
...
The Python itertools page has em>x m>actly a powerset recipe for this:
from itertools import chain, combinations
def powerset(iterable):
"powerset([1,2,3]) --> () (1,) (2,) (3,) (1,2) (1,3) (2,3) (1,2,3)"
s = list(iterable)
return chain.from_it...
Get the indem>x m> of the object inside an array, matching a condition
...
As of 2016, you're supposed to use Array.findIndem>x m> (an ES2015/ES6 standard) for this:
a = [
{prop1:"abc",prop2:"qwe"},
{prop1:"bnmb",prop2:"yutu"},
{prop1:"zm>x m>vz",prop2:"qwrq"}];
indem>x m> = a.findIndem>x m>(m>x m> => m>x m>.prop2 ==="yutu");
console.log(indem>x m>);
...
How can I trim leading and trailing white space?
...
# Returns string without leading white space
trim.leading <- function (m>x m>) sub("^\\s+", "", m>x m>)
# Returns string without trailing white space
trim.trailing <- function (m>x m>) sub("\\s+$", "", m>x m>)
# Returns string without leading or trailing white space
trim <- function (m>x m>) gsub("^\\s+|\\s+$",...
How to validate an email address in JavaScript
Is there a regular em>x m>pression to validate an email address in JavaScript?
95 Answers
9...
HTTP Error 404.3 - Not Found" while browsing wcf service on Windows Server 2008(64bit)
...ked as mentioned in below screenshot.
You might need to activate each bom>x m> and accept in case you get errors when activating all features at once
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