JSFiddle - React, Tailwind, and code Playground

by benhowdle89

JavaScript

var d = "13/11/11";
var e = "2011/13/11";
var f = "11/13/2011";

ffunction g(n) {
    return n.replace(/^((?:\d{2}\/){2})(\d{2})$/, '$120$2');
}
console.log(g(d));
console.log(g(e));
console.log(g(f));