Question

How to create a two dimensional (2D) array in JavaScript

Answer 1

const rows = 3;
const cols = 4;
const arr = new Array(rows).fill(new Array(cols).fill(0));

console.log(arr);




/*
run:

[ [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ] ]

*/

 

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