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Better way to shuffle two numpy arrays in unison
I have two numpy arrays of different shapes, but with the same length (leading dimension). I want to shuffle each of them, such that corresponding elements continue to correspond -- i.e. shuffle them in unison with respect to their leading indices.
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What is the use of the ArraySegment class?
I just came across the ArraySegment<byte> type while subclassing the MessageEncoder class.
6 Answers
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Array vs. Object efficiency in JavaScript
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The short version: Arrays are mostly faster than objects. But there is no 100% correct solution.
Update 2017 - Test and Results
var a1 = [{id: 29938, name: 'name1'}, {id: 32994, name: 'name1'}];
var a2 = [];
a2[29938] = {id: 29938, name: 'na...
Create an array with random values
How can I create an array with 40 elements, with random values from 0 to 39 ?
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21 Answers
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How can I concatenate two arrays in Java?
I need to concatenate two String arrays in Java.
61 Answers
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Javascript reduce on array of objects
...ce takes in a function to perform operations on each of the elements in an array. Every time it returns a value that is used as the next 'a' variable in the operation. So first iteration a = {x:1}, b = {x:2} then second iteration a = {x:3} (combined value of first iteration), b = {x:4}. The problem ...
How to remove element from an array in JavaScript?
I want to remove the first element of the array so that it becomes:
12 Answers
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How to initialize an array in Java?
I am initializing an array like this:
10 Answers
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How to determine the first and last iteration in a foreach loop?
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You could use a counter:
$i = 0;
$len = count($array);
foreach ($array as $item) {
if ($i == 0) {
// first
} else if ($i == $len - 1) {
// last
}
// …
$i++;
}
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Is there any way to enforce typing on NSArray, NSMutableArray, etc.?
Can I make a NSMutableArray instance where all the elements are of type SomeClass ?
11 Answers
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