Question

How to get the last row last column item from a matrix (2D array) in JavaScript

Answer 1

const arr = [
  [1, 2, 3, 0, 10],
  [4, 5, 6, 13, 11],
  [7, 8, 9, 14, 12]
];
   
const rows = arr.length;
const cols = arr[0].length;

const item = arr[rows - 1][cols - 1]
   
console.log(item); 
   
     
     
    
/*
run:
    
12
    
*/

 

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