Test to see if a date is the last day of the month with dayjs()

last_day_of_month.js

const dayjs = require('dayjs')
const customParseFormat = require('dayjs/plugin/customParseFormat')
dayjs.extend(customParseFormat)



const reading_date = dayjs(reading.t, 'M/D/YYYY HH:mm:ss A')

// is the month of adding a day the same as the month of adding a month?
if ( reading_date.add(1, 'day').get('month') == reading_date.add(1, 'month').get('month') ){
  console.log(reading.t)
}