moment npm date plus days code example
Example 1: moment js add day
var new_date = moment(startdate, "DD-MM-YYYY").add(5, 'days');
Example 2: moment format
moment().format('MMMM Do YYYY, h:mm:ss a'); // September 30th 2020, 2:48:17 pm
moment().format('dddd'); // Wednesday
moment().format("MMM Do YY"); // Sep 30th 20
moment().format('YYYY [escaped] YYYY'); // 2020 escaped 2020
moment().format(); // 2020-09-30T14:48:17+02:00