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Cartesian product of multiple arrays in JavaScript
How would you implement the Cartesian product of multiple arrays in JavaScript?
30 Answers
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When is it better to use an NSSet over an NSArray?
... is that a set uses hash values to find items (like a dictionary) while an array has to iterate over its entire contents to find a particular object.
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Array Size (Length) in C#
How can I determine size of an array (length / number of items) in C#?
9 Answers
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Which is a better way to check if an array has more than one element?
I just need to check if an array has more than one element.
I am trying to do it this way :
11 Answers
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How to convert an ArrayList containing Integers to primitive int array?
I'm trying to convert an ArrayList containing Integer objects to primitive int[] with the following piece of code, but it is throwing compile time error. Is it possible to convert in Java?
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Can an array be top-level JSON-text?
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Yes, an array is legal as top-level JSON-text.
There are three standard documents defining JSON: RFC 4627, RFC 7159 (which obsoletes RFC 4627), and ECMA-404. They differ in which top-level elements they allow, but all allow an objec...
Array extension to remove object by value
...n all types conforming
to RangeReplaceableCollectionType (in particular on Array) if
the elements of the collection are Equatable:
extension RangeReplaceableCollectionType where Generator.Element : Equatable {
// Remove first collection element that is equal to the given `object`:
mutating...
How do I make and use a Queue in Objective-C?
...'s version is a stack instead of a queue, so i tweaked it a bit:
NSMutableArray+QueueAdditions.h
@interface NSMutableArray (QueueAdditions)
- (id) dequeue;
- (void) enqueue:(id)obj;
@end
NSMutableArray+QueueAdditions.m
@implementation NSMutableArray (QueueAdditions)
// Queues are first-in-first...
Check if array is empty or null
I would like to know how to check if an array is empty or null in jQuery. I tried array.length === 0 but it didn't work. It did not throw any error either.
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Syntax for creating a two-dimensional array
...Hi Muneeb, if i understood correctly, you're asking in a multi-dimensional array, with different column size for each row, how to assign the values. Here'z how: int[][] multi = new int[][]{{1,2,3},{1,2,3,4},{1}}; and you can access/print them like: for(int i=0; i<multi.length; i++){ for(int j=0;...