With vanilla JS, you can use the getMonth() to get back the month for any Date object. Here’s a trick for getting back a formatted month name (like January or Jan).
/*!
* Convert a timestamp into a date
* (c) 2021 Andrew Borstein (https://andrewborstein.com/) & Chris Ferdinandi (https://gomakethings.com)
* MIT License,
* @param {Integer} month The month integer (1 is January)
* @param {Boolean} If true, use short month names (ex. "Jan")
* @return {Array|String} The month, or an array of months
*/
function getMonths (month, short) {
// Create month names
let format = short ? 'short' : 'long';
let monthNames = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11].map(function (mon) {
return new Date(2000, mon).toLocaleString({}, {month: format});
});
// Return month name (or all of them)
if (month) {
return monthNames[(month - 1)];
}
return monthNames;
}