
How to merge two arrays in JavaScript and de-duplicate items
Oct 18, 2009 · Here is a slightly different take on the loop. With some of the optimizations in the latest version of Chrome, it is the fastest method for resolving the union of the two arrays …
What's the simplest way to print a Java array? - Stack Overflow
Since Java 5 you can use Arrays.toString(arr) or Arrays.deepToString(arr) for arrays within arrays. Note that the Object[] version calls .toString() on each object in the array. The output is even …
Newest 'arrays' Questions - Stack Overflow
I'm using structured arrays to store atoms data produced by LAMMPS (I'm using a structured array that follows its format). I need to rotate the positions: import numpy as np transform = …
equals vs Arrays.equals in Java - Stack Overflow
Jan 9, 2020 · But that logic doesn't apply to arrays. Arrays have data, and you expect comparison (via equals) to compare the data. Ideally, the way Arrays.deepEquals does, but at least the …
What is the most efficient way to concatenate N arrays?
Feb 22, 2011 · For concatenating just two arrays, the fact that push accepts multiple arguments consisting of elements to add to the array can be used instead to add elements from one array …
How do I use a nested IF(AND) in an Excel array formula?
Jan 11, 2014 · Different contexts, different ways to "work as expected." :-) Multiplying arrays (implicitly TRUE->1, FALSE->0) is the array equivalent of and (returns non-zero if none is …
.net - Easiest way to compare arrays in C# - Stack Overflow
May 11, 2020 · In Java, Arrays.equals() allows to easily compare the content of two basic arrays (overloads are available for all the basic types). Is there such a thing in C#? Is there any …
Python numpy array of numpy arrays - Stack Overflow
Never append to numpy arrays in a loop: it is the one operation that NumPy is very bad at compared with basic Python. This is because you are making a full copy of the data each …
Loop (for each) over an array in JavaScript - Stack Overflow
Feb 17, 2012 · On arrays, the default iterator provides the value of each array element ("a", "b", and "c" in the example earlier). Arrays also have three other methods that return iterators: …
Java Array Sort descending? - Stack Overflow
Nov 8, 2009 · It's not directly possible to reverse sort an array of primitives (i.e., int[] arr = {1, 2, 3};) using Arrays.sort() and Collections.reverseOrder() because those methods require …