js selezionare il valore di modifica
document.getElementById('my-select').addEventListener('change', function() {
console.log('You selected: ', this.value);
});
onchange su seleziona tag
<select id="comboA" onchange="getComboA(this)">
<option value="">Select combo</option>
<option value="Value1">Text1</option>
<option value="Value2">Text2</option>
<option value="Value3">Text3</option>
</select>
onchange js
<script>
document.getElementById("fname").addEventListener("change", myFunction);
function myFunction() {
var x = document.getElementById("fname");
x.value = x.value.toUpperCase();
}
</script>
javascript aggiungi funzione all'evento onchange
transport_select.setAttribute("onchange", function(){toggleSelect(transport_select_id);});
// or
transport_select.onchange = function(){toggleSelect(transport_select_id);};
su modifica evento html non funziona
onchange is only triggered when the control is blurred. Try onkeypress instead.
ingresso javascript onchange ottenere valore
var element = document.getElementById("myInput");
element.onchange = function() {
console.log(element.value);
}