2d object normalization

index.js

const normalizeMap = (map, min, max) => {
  const keys = Object.keys(map);
  const values = Object.values(map);

  let normalizedValues;

  if (typeof values[0] === "object") {
    normalizedValues = values.map(v => normalizeMap(v, min, max));
  } else {
    normalizedValues = normalizeArray(values, min, max);
  }

  const normalizedMap = normalizedValues.reduce((acc, curr, i) => {
    acc[keys[i]] = curr;
    return acc;
  }, {})

  return normalizedMap;
};