How to reverse the result of a loop?

Question

JavaScript

There is a cycle:

var namber = 3;
var namberTwo = namber * namber;
for (var i = 1; i <= namber; i += 1) {
  process.stdout.write(i + "\t");
  for (var a = i + namber; a <= namberTwo; a += namber) {
    if (a <= (namberTwo - namber)) {
      process.stdout.write(a + "\t");
    } else {
      process.stdout.write(a + "\n");
    }
  }
}

Which outputs the result:

1       4       7
2       5       8
3       6       9

How to reverse the result? That is, output:

3       2       1
6       5       4
9       8       7

Answer 1

var num = 3; 

for (var i = 1; i <= num; i++) {
  for (var j = 0; j < num; j++) { 
    process.stdout.write(`${i * num - j}\t`);
  }
  process.stdout.write('\n');
}

Answer 2

Namber is cool...

Answer 3

for (var i=number; i <= 1; i--)