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Q&A

Posts tagged array

Subtag of data-structures · 1 child tag

For questions about arrays, an ordered linear data structure consisting of a collection of elements identified by one or multiple indexes.

This tag doesn't have a detailed wiki yet.

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Q&A How do I (compactly) initialize a 2-d array of structs with the same value?

I learned about the ** operator for array-repeat, and I love it. I have a struct that contains a 2-d array of inner structs, like const D1 = 30; const D2 = 40; const Inner = struct { .a: u32, ....

0 answers  ·  posted 2mo ago by aghast‭

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Q&A array of arrays vs array of pointers to store array of string literals

Let's consider the following code: const char a[][4] = {"aa", "aaa"}; const char *b[] = {"bb", "bbb"}; const char *const c[] = {"cc", "ccc"}; For shared libraries, both b and c arrays require...

0 answers  ·  posted 6mo ago by alx‭  ·  edited 6mo ago by alx‭

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Q&A What is [{options}] in JavaScript?

I am trying to understand this code: const iframes = iFrameResize( [{options}], [css selector] || [iframe] ); The code can be found in this documentation. Is [{options}] an array of objects an...

1 answer  ·  posted 7mo ago by deleted user  ·  last activity 7mo ago by hkotsubo‭

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Q&A Why does pushing to one array affect all the arrays in my two-dimensional array?

I was trying to initialize a simple two dimensional array as follows: const arrays = Array(3).fill([]); However, when I tried to push an entry into one of the arrays, it seems like it gets push...

1 answer  ·  posted 9mo ago by Moshi‭  ·  last activity 9mo ago by Moshi‭

Question javascript array
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Q&A Difference between puts and print for Array

I have an array friends = Array.new friends[0] = "Mad man" friends[1] = "hey" There's two ways to print it (using print or puts). At first I tried print print friends which gave: ["Mad...

1 answer  ·  posted 1y ago by deleted user  ·  edited 10mo ago by Trilarion‭

Question ruby array output
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Q&A When using the compare function in Array.prototype.sort, how to avoid an element to be processed more than once?

When using the Array.prototype.sort method, we can pass a compare function as argument. Then, this function can be used to process array's elements, so the comparison is made using some custom crit...

1 answer  ·  posted 10mo ago by hkotsubo‭  ·  edited 10mo ago by hkotsubo‭

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Q&A Kotlin FloatArray from Iterable<Float>

Suppose I am using a Java API from Kotlin and I want to call a function that takes a FloatArray (represented as float[] in Java), and I have an Iterable&lt;Float&gt; as my input data type. To be mo...

1 answer  ·  posted 10mo ago by Josh Hyatt‭  ·  edited 10mo ago by Alexei‭

Question array kotlin iterable
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Q&A Get the length of a slice from a multi-dimensional array

If I have a one-dimensional array, I can get the length of it quite easily: var x = moves.Length(). However, if the array is multi-dimensional, .Length() returns the total number of elements. If ...

2 answers  ·  posted 1y ago by FrankLuke‭  ·  last activity 1y ago by FoggyFinder‭

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Q&A How to read lines into an array in Bash

I wish to fill an array with strings, using Bash scripting. The strings are in a file, one per line. Here is what I've tried: declare -a my_array=() while read line; do my_array+=( "$line"...

3 answers  ·  posted 1y ago by LVx0‭  ·  edited 1y ago by Alexei‭

Question array bash console stdin
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Q&A How do I filter an array in C?

No, I'm not trying to get the full program written completely in C by you guys. I only need some way to implement the functionalities of each function I found confusing. In this challenge in Code ...

2 answers  ·  posted 1y ago by General Sebast1an‭  ·  last activity 1y ago by Derek Elkins‭

Question c javascript array
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Q&A Permutations of an array - APL

In Dyalog APL, there's a predefined function in the dfns library to generate a matrix of permutations for a list of the numbers from 1 to n. I want to create the same functionality, except that it...

1 answer  ·  posted 2y ago by Razetime‭  ·  edited 2y ago by Alexei‭