Function shuffle

external/.d3.js:13279–13292

(array, random)

}

function shuffle(array, random) {
  let m = array.length,
      t,
      i;

  while (m) {
    i = random() * m-- | 0;
    t = array[m];
    array[m] = array[i];
    array[i] = t;
  }

  return array;
}

function enclose(circles) {
  return packEncloseRandom(circles, lcg$1());