export default reduce()

in src/utilities/groupEventEdges.js [23:31]

• 9 lines of code
• 2 McCabe index (conditional complexity)

export default reduce((accumulator, current) => {
  const stringifiedDate = extractDateFromNode(current);
  const date = new Date(stringifiedDate);
  const year = date.getFullYear();
  const monthIndex = date.getMonth();
  const month = monthNameByIndex[monthIndex];
  const key = `${month} ${year}`;
  return assoc(key, [...(accumulator[key] || []), current], accumulator);
}, {});