monthly-iteration-between-two-dates.js

const moment = require('moment');

var startDate = moment('2019-03-12');
var endDate = moment('2019-05-04');
var result = [];
var endOfMonth;
if (endDate.isBefore(startDate)) {
    throw "End date must be greated than start date."
}
while (startDate.isBefore(endDate)) {
    endOfMonth = startDate.clone().endOf('month').format("YYYY-MM-DD")
    if(moment(endOfMonth).isAfter(endDate)) {
        result.push(startDate.format("YYYY-MM-DD"),moment(endDate).format("YYYY-MM-DD"));
        break;
    } else {
        result.push(startDate.format("YYYY-MM-DD"),endOfMonth);
        startDate = moment(endOfMonth).add(1, 'day');
    }
}
console.log('monthly',result)