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What does -> mean in Python function definitions?
...to attach a metadata string to various types of object. This is amazingly handy, so Python 3 extends the feature by allowing you to attach metadata to functions describing their parameters and return values.
There's no preconceived use case, but the PEP suggests several. One very handy one is to al...
What is the equivalent of the C++ Pair in Java?
...bout the relationship between the two values (how do you know what "first" and "second" mean ?).
A better practice is to write a very simple class, like the one Mike proposed, for each application you would have made of the Pair class. Map.Entry is an example of a pair that carry its meaning in its...
Assigning out/ref parameters in Moq
... @ATD partly yes. Declare a delegate with the out parameter and assign the value in the callback with the syntax from above
– royalTS
Jul 25 '19 at 7:06
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In-Place Radix Sort
...rt for DNA. It's written in D because that's the language that I use most and therefore am least likely to make silly mistakes in, but it could easily be translated to some other language. It's in-place but requires 2 * seq.length passes through the array.
void radixSort(string[] seqs, size_t base...
What is the most efficient Java Collections library? [closed]
... lot of functionality over the normal collections in the JDK.
Personally (and I'm biased) I love Guava (including the former Google Java Collections project). It makes various tasks (including collections) a lot easier, in a way which is at least reasonably efficient. Given that collection operatio...
What is TypeScript and why would I use it in place of JavaScript? [closed]
...ercome any kind of issues caused by incorrect or missing definition files.
Converting from JavaScript to TypeScript
Any .js file can be renamed to a .ts file and ran through the TypeScript compiler to get syntactically the same JavaScript code as an output (if it was syntactically correct in the fir...
How to sort by two fields in Java?
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@Ralph: I have amended my answer, and added a brief description.
– Richard H
Jan 26 '11 at 14:53
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Read file line by line using ifstream in C++
...
#include <fstream>
std::ifstream infile("thefile.txt");
The two standard methods are:
Assume that every line consists of two numbers and read token by token:
int a, b;
while (infile >> a >> b)
{
// process pair (a,b)
}
Line-based parsing, using string streams:
#include ...
Remove Item from ArrayList
I have an ArrayList suppose list , and it has 8 items A-H and now I want to delete 1,3,5 position Item stored in int array from the list how can I do this.
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Creating a UICollectionView programmatically
...er first loads default views in its super. Its better to overload loadview and assign your custom views directly.
– Pétur Ingi Egilsson
Apr 20 '14 at 11:28
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