how can select from drop down menu and call javascript function
I have a drop down which has many options. I want that when I select any option then it calls a function through JavaScript.
the code which I used is here
<select name="aa" onchange="report(this.value)"> <--- this is function in .js
<option value="daily">daily</option>
<option value="monthly">monthly</option>
</select>
I want when I select daily then function(daily) is invoked and vice versa.
function report(daily)<-- js function {
loadXMLDoc('script/d_report.php','responseTag');
document.getElementById('responseTag').style.visibility='visible';
document.getElementById('list_report').style.visibility='hidden';
document.getElementById('formTag').style.visibility='hidden';
}
function report(monthly) {
document.getElementById('responseTag').style.visibility='visible';
loadXMLDoc('script/m_report.php','responseTag');
document.getElementById('l开发者_Python百科ist_report').style.visibility='hidden';
document.getElementById('formTag').style.visibility='hidden';
}
<select name="aa" onchange="report(this.value)">
<option value="">Please select</option>
<option value="daily">daily</option>
<option value="monthly">monthly</option>
</select>
using
function report(period) {
if (period=="") return; // please select - possibly you want something else here
const report = "script/"+((period == "daily")?"d":"m")+"_report.php";
loadXMLDoc(report,'responseTag');
document.getElementById('responseTag').style.visibility='visible';
document.getElementById('list_report').style.visibility='hidden';
document.getElementById('formTag').style.visibility='hidden';
}
Unobtrusive version:
<select id="aa" name="aa">
<option value="">Please select</option>
<option value="daily">daily</option>
<option value="monthly">monthly</option>
</select>
using
window.addEventListener("load",function() {
document.getElementById("aa").addEventListener("change",function() {
const period = this.value;
if (period=="") return; // please select - possibly you want something else here
const report = "script/"+((period == "daily")?"d":"m")+"_report.php";
loadXMLDoc(report,'responseTag');
document.getElementById('responseTag').style.visibility='visible';
document.getElementById('list_report').style.visibility='hidden';
document.getElementById('formTag').style.visibility='hidden';
});
});
jQuery version - same select with ID
$(function() {
$("#aa").on("change",function() {
const period = this.value;
if (period=="") return; // please select - possibly you want something else here
var report = "script/"+((period == "daily")?"d":"m")+"_report.php";
loadXMLDoc(report,'responseTag');
$('#responseTag').show();
$('#list_report').hide();
$('#formTag').hide();
});
});
Greetings if i get you right you need a JavaScript function that doing it
function report(v) {
//To Do
switch(v) {
case "daily":
//Do something
break;
case "monthly":
//Do somthing
break;
}
}
Regards
<script type="text/javascript">
function report(func)
{
func();
}
function daily()
{
alert('daily');
}
function monthly()
{
alert('monthly');
}
</script>
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