const arr : number[][] = [
[1, 2, 3, 5],
[4, 5, 6, 5],
[7, 8, 9, 5]
];
const rows : number = arr.length;
const cols : number = arr[0].length;
for (let i : number = 0; i < rows; i++) {
let sumRow = 0
for (let j : number = 0; j < cols; j++) {
sumRow = sumRow + arr[i][j];
}
console.log("Sum of row:" + i + " = " + sumRow);
}
for (let i : number = 0; i < cols; i++) {
let sumCol = 0
for (let j : number = 0; j < rows; j++) {
sumCol = sumCol + arr[j][i];
}
console.log("Sum of col:" + i + " = " + sumCol);
}
/*
run:
/*
run:
"Sum of row:0 = 11"
"Sum of row:1 = 20"
"Sum of row:2 = 29"
"Sum of col:0 = 12"
"Sum of col:1 = 15"
"Sum of col:2 = 18"
"Sum of col:3 = 15"
*/
