How to create a zero filled JavaScript array of arbitrary length? [duplicate]

Answer 1

One way could use recursion.

function fillArray(l, a) {
  a = a || [];
  if (0 < l) {
    l -= 1;
    a[l] = 0;
    return fillArray(l, a);
  }
  return a;
}

I had also posted a more classic option:

function fillArray(l) {
  var a;
  for (a = []; 0 < l; l-=1, a[l]=0);
  return a;
}