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js arrays in arrays

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Modern Moth answered on March 2, 2020 Popularity 10/10 Helpfulness 1/10

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js arrays in arrays

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// This is known as a 2-dimensional array (or matrix)
let tester = [
	[2,5], // 0
	[10,6] // 1
/*   ^  ^
     0  1
*/
];

// Get the element on the first row and the second column
console.log(tester[0][1]);

// iterate through each row and return the first column
for(let i = 0; i < tester.length;i++){
	console.log(tester[i][0])
}

Popularity 10/10 Helpfulness 1/10 Language javascript

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Tags: arrays javascript

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Contributed on Oct 04 2022

Modern Moth

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var letters = ["A", "B", "C", "D"];

var result = letters.includes("A");
// result will be TRUE or FALSE

Popularity 10/10 Helpfulness 7/10 Language javascript

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Tags: element

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Contributed on Feb 08 2022

Terrible Tern

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javascript element in array

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var fruits = ["Banana", "Orange", "Apple", "Mango"];

var n = fruits.includes("Mango");

Popularity 10/10 Helpfulness 5/10 Language javascript

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Tags: element

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Contributed on Mar 02 2020

Brave Bear

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javascript in array

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how to use innerHTML

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript

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Contributed on May 28 2021

Gentle Gerbil

0 Answers Avg Quality 2/10

js arrays in arrays

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