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Replace values in list using Python [duplicate]
...n-place if you want, but it doesn't actually save time:
items = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
for index, item in enumerate(items):
if not (item % 2):
items[index] = None
Here are (Python 3.6.3) timings demonstrating the non-timesave:
In [1]: %%timeit
...: items = [0, 1, 2, 3,...
What is “point free” style (in Functional Programming)?
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answered Jun 3 '09 at 12:38
DarioDario
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Algorithm to return all combinations of k elements from n
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How to get row from R data.frame
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130
x[r,]
where r is the row you're interested in. Try this, for example:
#Add your data
x <...
How to do this using jQuery - document.getElementById(“selectlist”).value
...LOL.
– Jacob Relkin
Mar 10 '11 at 0:30
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jQuery map vs. each
...you can potentially waste a lot of memory.
For example:
var items = [1,2,3,4];
$.each(items, function() {
alert('this is ' + this);
});
var newItems = $.map(items, function(i) {
return i + 1;
});
// newItems is [2,3,4,5]
You can also use the map function to remove an item from an array. F...
Shell equality operators (=, ==, -eq)
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answered Dec 8 '13 at 3:31
John KugelmanJohn Kugelman
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Convert a byte array to integer in Java and vice versa
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Use the classes found in the java.nio namespace, in particular, the ByteBuffer. It can do all ...
Can't use modulus on doubles?
...he fmod() function.
#include <cmath>
int main()
{
double x = 6.3;
double y = 2.0;
double z = std::fmod(x,y);
}
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