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How to create an array containing 1…N
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409
If I get what you are after, you want an array of numbers 1..n that you can later loop through....
What does auto do in margin:0 auto?
What does auto do in margin:0 auto; ?
7 Answers
7
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Adding gif image in an ImageView in android
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80
First, copy your GIF image into Asset Folder of your app
create following classes and paste the ...
How to find Unused Amazon EC2 Security groups
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edited Jul 1 at 20:15
Dherik
11.2k1010 gold badges7373 silver badges114114 bronze badges
answer...
How does RegexOptions.Compiled work?
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304
RegexOptions.Compiled instructs the regular expression engine to compile the regular expression...
Iterating over a numpy array
...>>> for (x,y), value in numpy.ndenumerate(a):
... print x,y
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0 0
0 1
1 0
1 1
2 0
2 1
Regarding the performance. It is a bit slower than a list comprehension.
X = np.zeros((100, 100, 100))
%timeit list([((i,j,k), X[i,j,k]) for i in range(X.shape[0]) for j in range(X.shape[1]) for k...
JavaScript get element by name
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250
The reason you're seeing that error is because document.getElementsByName returns a NodeList of ...
C# Error: Parent does not contain a constructor that takes 0 arguments
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203
Since you don't explicitly invoke a parent constructor as part of your child class constructor,...
Is it better to use std::memcpy() or std::copy() in terms to performance?
... 5 strings using all four SHA-2 versions (224, 256, 384, 512), and I loop 300 times. I measure times using Boost.timer. That 300 loop counter is enough to completely stabilize my results. I ran the test 5 times each, alternating between the memcpy version and the std::copy version. My code takes adv...
How can I count the number of matches for a regex?
... following. (Starting from Java 9, there is a nicer solution)
int count = 0;
while (matcher.find())
count++;
Btw, matcher.groupCount() is something completely different.
Complete example:
import java.util.regex.*;
class Test {
public static void main(String[] args) {
String hel...