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List comprehension: Returning two (or more) items for each item
...>>> list(chain.from_iterable((f(x), g(x)) for x in range(3)))
[2, 0, 3, 1, 4, 4]
Timings:
from timeit import timeit
f = lambda x: x + 2
g = lambda x: x ** 2
def fg(x):
yield f(x)
yield g(x)
print timeit(stmt='list(chain.from_iterable((f(x), g(x)) for x in range(3)))',
...
What is the difference between Elastic Beanstalk and CloudFormation for a .NET project?
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answered Jan 20 '13 at 21:53
jamiebjamieb
8,2371212 gold badges4242 silver badges5959 bronze badges
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error: passing xxx as 'this' argument of xxx discards qualifiers
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edited May 6 '18 at 18:40
Tomer
45155 silver badges1616 bronze badges
answered May 12 '11 at 5:02
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Does every Javascript function have to return a value?
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edited Aug 30 '17 at 13:00
answered Jun 27 '13 at 7:33
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Check if database exists in PostgreSQL using shell
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202
I use the following modification of Arturo's solution:
psql -lqt | cut -d \| -f 1 | grep -qw &...
Passing a 2D array to a C++ function
...o pass a 2D array to a function:
The parameter is a 2D array
int array[10][10];
void passFunc(int a[][10])
{
// ...
}
passFunc(array);
The parameter is an array containing pointers
int *array[10];
for(int i = 0; i < 10; i++)
array[i] = new int[10];
void passFunc(int *a[10]) //Array c...
How to adjust text font size to fit textview
... refitText(String text, int textWidth)
{
if (textWidth <= 0)
return;
int targetWidth = textWidth - this.getPaddingLeft() - this.getPaddingRight();
float hi = 100;
float lo = 2;
final float threshold = 0.5f; // How close we have to be
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vs in Generics
...iance in generic interfaces was added to C# and VB.NET (in .NET 4 with VS 2010), this was a compile time error.
After .NET 4, IEnumerable<T> was marked covariant, and became IEnumerable<out T>. Since IEnumerable<out T> only uses the elements within it, and never adds/changes them...
How can I get the timezone name in JavaScript?
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260
The Internationalization API supports getting the user timezone, and is supported in all current...
Preferred Github workflow for updating a pull request after code review
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answered Oct 30 '11 at 19:45
AmberAmber
421k7070 gold badges575575 silver badges516516 bronze badges
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