JSFiddle - React, Tailwind, and code Playground

by Rapha Souza

HTML

<script language="Javascript">
function ComparaDatas()
{
var data1 = document.getElementById("data1").value;
var data2 = document.getElementById("data2").value;

var nova_data1 = parseInt(data1.split("/")[2].toString() + data1.split("/")[1].toString() + data1.split("/")[0].toString());
var nova_data2 = parseInt(data2.split("/")[2].toString() + data2.split("/")[1].toString() + data2.split("/")[0].toString());
 
 if (nova_data2 > nova_data1)
   alert("A data 2 é maior que a data 1.");
 else if (nova_data1 == nova_data2)
   alert("As datas são iguais.");
 else
   alert("Data 2 é menor que a data 1.");
}
</script>

data1:<input type="date" name="data1" id="data1">
data2:<input type="date" name="data2" id="data2">
<input type="button" value="Comparar" onclick="ComparaDatas()">