Random with probability

anastasiia-tilikina

The code generates a number between 1 and the numbers array's length.

Shortcut: getrandom

function generateRandomNum() {
  const numbers = [2, 2, 2, 2, 2, 2, 2, 2, 4, 4];
  const idx = Math.floor(Math.random() * numbers.length);

  return numbers[idx];
}