Question

How to declare, initialize and print 2D array (matrix) in TypeScript

Answer 1

const arr = [
  [1, 2, 3, 5],
  [4, 5, 6, 8],
  [7, 8, 9, 2]
];
 
const rows = arr.length;
const cols = arr[0].length;
 
for (let i = 0; i < rows; i++) {
    for (let j = 0; j < cols; j++) {
        console.log(arr[i][j]); 
    }
    console.log(); 
}
 
   
     
     
/*
run:
     
1 
2 
3 
5 

4 
5 
6 
8 

7 
8 
9 
2 
     
*/

 

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