@atlaskit/editor-common/dist/es2019/utils/median.js

A package that contains common classes and components for editor and renderer

export function median(array) {
  const middle = Math.floor(array.length / 2);
  const sortedArray = [...array].sort((a, b) => a - b);
  return array.length % 2 !== 0 ? sortedArray[middle] : (sortedArray[middle - 1] + sortedArray[middle]) / 2;
}