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Questions - array-map

How to get new Set from array of arrays by using Array.map function?

Exploring Sets now and could not get a new Set from an array of x arrays in it. I what to use Array.map method inside new Set(). Here is what I'm trying to do, and it seems logical, but in the end hav...
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kadeikin

javascript

arrays

set

array-map

Votes: 0

Answers: 1

Latest Answer

You need only the array, not spreaded parameters: new Set(array.map(x => x.value)); From Set: Syntax new Set() new Set(iterable) With a nested array, you need a flat it first: const arr...
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Nina Scholz

Assign Nested map unique key, javascrpit

I need to assign assign each input their own id. const sep = words.map((word, ind) => { return ( <div key={ind} className="guess__word"> {word.split("").map(...
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Troy

javascript

array-map

Votes: 0

Answers: 2

Latest Answer

if kinda hard to figure out if there is a math equation that would help me solve this. There is - given indicies X and Y, you can map onto the Xth prime number raised to the Y power - but that's way...
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CertainPerformance

How use array_map for order by word in php

I have this two-dimensional array array ( 0 => array ( "id_category" => 3 , "name" => "mesa plegable" ), 1 => array ( ...
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Jonatan

php

arrays

array-map

Votes: 0

Answers: 2

Latest Answer

$data - represents the raw data. $result - represents the final expected output/result. $result = []; array_map(function ($value) use (&$result) { if (!array_key_exists($key = substr($value[&...
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steven7mwesigwa

Should I use &quot;fgetcsv&quot; instead of &quot;array_map&quot; and how to do it?

I've made this script to extract data from a CSV file. $url = 'https://flux.netaffiliation.com/feed.php?maff=3E9867FCP3CB0566CA125F7935102835L51118FV4'; $data = array_map(function($line) { return str_...
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Guillaume

php

csv

fgetcsv

array-map

Votes: 0

Answers: 1

Latest Answer

First of all, there is no the ONE proper way to do things in programming. It is up to you and depends on your use case. I just downloaded the CSV file and it is ca. 20MB big. In your solution you down...
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Selim Acar

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