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How to convert Set to String[]?
...
Use the Set#toArray(T[]) method taking a typed array argument of the same size.
String[] GPXFILES1 = myset.toArray(new String[myset.size()]);
A different size can also be used, but that would force the toArray() method to create a new a...
Why are arrays of references illegal?
...C++ Standard §8.3.2/4:
There shall be no references to references, no arrays of references, and no pointers to references.
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Using an integer as a key in an associative array in JavaScript
When I create a new JavaScript array, and use an integer as a key, each element of that array up to the integer is created as undefined.
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Convert a series of parent-child relationships into a hierarchical tree?
...ed function can be found at the end of this answer).
First initialize the array of child/parent pairs:
$tree = array(
'H' => 'G',
'F' => 'G',
'G' => 'D',
'E' => 'D',
'A' => 'E',
'B' => 'C',
'C' => 'E',
'D' => null
);
Then the function that ...
What is the fastest or most elegant way to compute a set difference using Javascript arrays?
...rence) between them. The two sets are stored and manipulated as Javascript arrays, as the title says.
10 Answers
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How to skip over an element in .map()?
How can I skip an array element in .map ?
16 Answers
16
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.NET data structures: ArrayList, List, HashTable, Dictionary, SortedList, SortedDictionary — Speed,
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Off the top of my head:
Array* - represents an old-school memory array - kind of like a alias for a normal type[] array. Can enumerate. Can't grow automatically. I would assume very fast insert and retrival speed.
ArrayList - automatically growing a...
deleting rows in numpy array
I have an array that might look like this:
6 Answers
6
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Are arrays passed by value or passed by reference in Java? [duplicate]
Arrays are not a primitive type in Java, but they are not objects either , so are they passed by value or by reference? Does it depend on what the array contains, for example references or a primitive type?
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Java array reflection: isArray vs. instanceof
...es, you should use the instanceof operator to test whether an object is an array.
Generally, you test an object's type before downcasting to a particular type which is known at compile time. For example, perhaps you wrote some code that can work with a Integer[] or an int[]. You'd want to guard you...