I want to make the value in quantity show as 1 if its not valid.
<input type = "number" id = "quantity" value="1" onchange="Validatequantity()" />
function Validatequantity() {
var num = document.getElementById('quantity').value;
if (num < 1 || num > 10 ) {
alert('Invalid ticket number ...Should be between 1-10');
num = 1; // reset part is here(don't work)
}
}