Calculating median - javascript

Question

I\'ve been trying to calculate median but still I\'ve got some mathematical issues I guess as I couldn\'t get the correct median value and couldn\'t figure out

Answer 1

Simpler & more efficient

const median = dataSet => {
  if (dataSet.length === 1) return dataSet[0]
  const sorted = ([ ...dataSet ]).sort()
  const ceil = Math.ceil(sorted.length / 2)
  const floor = Math.floor(sorted.length / 2)
  if (ceil === floor) return sorted[floor]
  return ((sorted[ceil] + sorted[floor]) / 2)
}