flashercs

/**
 * delete a member in an array for every nScale numbers loop;
 * @param aInput The input array with sequence members
 * @param nScale The granularity of the members removation
 * @param nRemained The remained members count in the array
 */
function removeNO3(aInput = [1, 2, 3, 4, 5, 6], nScale = 3, nRemained = 1) {
  var i = 0;
  aOutput = aInput.slice(0);
  --nScale;
  while (aOutput.length > nRemained) {
    i = (i + nScale) % aOutput.length;
    aOutput.splice(i, 1);
  }
  return aOutput;
}
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removeNO3([1,2,3,4,5,6,7,8,9,10]);
removeNO3([1,2,3,4,5,6,7,8,9,10],undefined,2);
removeNO3([1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20],undefined,3);
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