Question

How to create a two dimensional (2D) array and initialize the array with specific number in Node.js

Answer 1

const rows = 4;
const cols = 5;
const arr = new Array(rows).fill(new Array(cols).fill(-1));
 
console.log(arr);
 
 
 
 
/*
run:
 
[
  [ -1, -1, -1, -1, -1 ],
  [ -1, -1, -1, -1, -1 ],
  [ -1, -1, -1, -1, -1 ],
  [ -1, -1, -1, -1, -1 ]
]

*/

 

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