Establecer la fecha predeterminada hoy JS
$(document).ready( function() {
var now = new Date();
var day = ("0" + now.getDate()).slice(-2);
var month = ("0" + (now.getMonth() + 1)).slice(-2);
var today = now.getFullYear()+"-"+(month)+"-"+(day) ;
$('#datePicker').val(today);
});
Breakable Barracuda