shadowboxdev

const _ = require('lodash')

function genrows(groups, groupKey) {
  return _.toPairs(groups)
    .map(([key, data]) => ({[groupKey]: key, data}))
}

function gengroups(arr, iteratee, key) {
  const grouped = _.groupBy(arr, iteratee)
  return genrows(grouped, key)

shadowboxdev

//note: month is 0 based, just like Dates in js
function getWeeksInMonth(year, month) {
  const weeks = [],
    firstDate = new Date(year, month, 1),
    lastDate = new Date(year, month + 1, 0),
    numDays = lastDate.getDate();

  let dayOfWeekCounter = firstDate.getDay();

  for (let date = 1; date <= numDays; date++) {