JSFiddle - React, Tailwind, and code Playground

JavaScript

var d1 = new Date();

var s1 =  [d1.getDate(), d1.getMonth(), d1.getFullYear()].join('/');
alert("first Date: " + s1);

var s2 =  [d1.getDate(), d1.getMonth() + 1, d1.getFullYear()].join('/');
alert("Second Date: " + s2 );