Finden Sie maximale Monats Tage js
var month = 0; // January
var d = new Date(2008, month + 1, 0);
console.log(d.toString()); // last day in January
Your Mom
var month = 0; // January
var d = new Date(2008, month + 1, 0);
console.log(d.toString()); // last day in January