JSFiddle - React, Tailwind, and code Playground

by alnitak

JavaScript

Date.prototype.ISO8601date = function() {
    function fix2(n) {
        return (n < 10) ? '0' + n : n;
    }

    return this.getFullYear() + '-' + fix2(this.getMonth() + 1) + '-' + fix2(this.getDate());
}

var d = new Date();
var s = d.ISO8601date();
alert(s);