}
const sortedDataSet = dataSet.slice().sort((a, b) => a - b);
const middleIndex = Math.floor(sortedDataSet.length / 2);
- if (sortedDataSet.length % 2) {
+ if (sortedDataSet.length % 2 === 0) {
return sortedDataSet[middleIndex / 2];
}
return (sortedDataSet[middleIndex - 1] + sortedDataSet[middleIndex]) / 2;