JAVASCRIPT

get last day of month javascript

var today = new Date();
var lastDayOfMonth = new Date(today.getFullYear(), today.getMonth()+1, 0);

get the last day of the month in js

let today = new Date();
let lastDayOfMonth = new Date(today.getFullYear(), today.getMonth()+1, 0);
let numberOfDays = lastDayOfMonth.getDate();

calculate last day of month javascript typescript

var today = new Date();
var lastDayOfMonth = new Date(today.getFullYear(), today.getMonth()+1, 0);

get the last day of the month in js

let today = new Date();
let lastDayOfMonth = new Date(today.getFullYear(), today.getMonth()+1, 0);
let numberOfDays = lastDayOfMonth.getDate();

javascript first and last day of the month

var date = new Date(), y = date.getFullYear(), m = date.getMonth();
var firstDay = new Date(y, m, 1);
var lastDay = new Date(y, m + 1, 0);