let arrayDates = valueFrom.trim().split("-");
08/01/2019
08-01-2019
/
-
arrayDates = arrayDates.map( item => item.replace(/\//g, '-'));
window.href
document.getElementsByTagName('form')[0].onsubmit = (e) =>
{
e.preventDefault();
let range;
range = document.getElementById('range').value;
let arrayDates = range.trim().split("-");
arrayDates = arrayDates.map(item => item.trim().replace(/\//g, '-'));
window.location.href = "https://www.webiste.co/calculate/date_interval/"+arrayDates[0]+"/"+arrayDates[0]
}