JSFiddle - React, Tailwind, and code Playground

by Thomas Upton

HTML

<input type="date" id="a">
<input type="date" id="b">
<input type="submit" id="c" onclick="getValue()">

JavaScript

function getValue() {

    var startDate = document.getElementById("a").value;
    var endDate = document.getElementById("b").value;

    var date1 = new Date(startDate);
    var date2 = new Date(endDate);

    var difference = Math.abs(date1.getTime() - date2.getTime());
    difference = parseInt(difference / 86400000);

    alert(difference);
}