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<select onchange="test()" id="select_id">
    <option value="0">-Select-</option>
    <option value="1">Communication</option>
</select>

I need to get the value of the selected option in javascript: does anyone know how to get the selected value or text, please tell how to write a function for it. I have assigned onchange() function to select so what do i do after that?

<select onchange="test()" id="select_id">
    <option value="0">-Select-</option>
    <option value="1">Communication</option>
</select>

I need to get the value of the selected option in javascript: does anyone know how to get the selected value or text, please tell how to write a function for it. I have assigned onchange() function to select so what do i do after that?

• javascript

Share Improve this question Follow edited Nov 1, 2017 at 18:10 bhansa 7,49433 gold badges3131 silver badges5858 bronze badges asked Mar 24, 2011 at 8:54 Siva Siva 3,72888 gold badges2828 silver badges2626 bronze badges 2

• Here: stackoverflow.com/questions/1085801/… and here: stackoverflow.com/questions/4029281/get-drop-down-value – Mika Commented Mar 24, 2011 at 8:59
• 2 If you only want the value of the option that was selected then... <select onchange="window.alert(this.value);">... options...</select>... should get ya just that and nothing more. – S0AndS0 Commented Jun 7, 2019 at 23:38

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19 Answers 19

Sorted by: Reset to default 189

Use either JavaScript or jQuery for this.

Using JavaScript

<script>
function val() {
    d = document.getElementById("select_id").value;
    alert(d);
}
</script>

<select onchange="val()" id="select_id">

Using jQuery

$('#select_id').change(function(){
    alert($(this).val());
})

If you're googling this, and don't want the event listener to be an attribute, use:

document.getElementById('my-select').addEventListener('change', function() {
  console.log('You selected: ', this.value);
});

<select id="my-select">
  <option value="1">One</option>
  <option value="2">Two</option>
  <option value="3">Three</option>
</select>

Wow, no really reusable solutions among answers yet.. I mean, a standard event handler should get only an event argument and doesn't have to use ids at all.. I'd use:

function handleSelectChange(event) {

    // if you want to support some really old IEs, add
    // event = event || window.event;

    var selectElement = event.target;

    var value = selectElement.value;
    // to support really old browsers, you may use
    // selectElement.value || selectElement.options[selectElement.selectedIndex].value;
    // like el Dude has suggested

    // do whatever you want with the value
}

You may use this handler with each – inline js:

<select onchange="handleSelectChange(event)">
    <option value="1">one</option>
    <option value="2">two</option>
</select>

jQuery:

jQuery('#select_id').on('change',handleSelectChange);

or vanilla JS handler setting:

var selector = document.getElementById("select_id");
selector.onchange = handleSelectChange;
// or
selector.addEventListener('change', handleSelectChange);

And don't have to rewrite this for each select element you have.

Example snippet:

function handleSelectChange(event) {

    var selectElement = event.target;
    var value = selectElement.value;
    alert(value);
}

<select onchange="handleSelectChange(event)">
    <option value="1">one</option>
    <option value="2">two</option>
</select>

function test(a) {
    var x = (a.value || a.options[a.selectedIndex].value);  //crossbrowser solution =)
    alert(x);
}

<select onchange="test(this)" id="select_id">
    <option value="0">-Select-</option>
    <option value="1">Communication</option>
    <option value="2">Communication</option>
    <option value="3">Communication</option>
</select>

No need for an onchange function. You can grab the value in one line:

document.getElementById("select_id").options[document.getElementById("select_id").selectedIndex].value;

Or, split it up for better readability:

var select_id = document.getElementById("select_id");

select_id.options[select_id.selectedIndex].value;

let dropdown = document.querySelector('select');
if (dropdown) dropdown.addEventListener('change', function(event) {
    console.log(event.target.value);
});

I wonder that everyone has posted about value and text option to get from <option> and no one suggested label.

So I am suggesting label too, as supported by all browsers

To get value (same as others suggested)

function test(a) {
var x = a.options[a.selectedIndex].value;
alert(x);
}

To get option text (i.e. Communication or -Select-)

function test(a) {
var x = a.options[a.selectedIndex].text;
alert(x);
}

OR (New suggestion)

function test(a) {
var x = a.options[a.selectedIndex].label;
alert(x);
}

HTML

<select onchange="test(this)" id="select_id">
    <option value="0">-Select-</option>
    <option value="1">Communication</option>
    <option value="2" label=‘newText’>Communication</option>
</select>

Note: In above HTML for option value 2, label will return newText instead of Communication

Also

Note: It is not possible to set the label property in Firefox (only return).

HTML:

<select onchange="cityChanged(this.value)">
      <option value="CHICAGO">Chicago</option>
      <option value="NEWYORK">New York</option>
</select>

JS:

function cityChanged(city) {
    alert(city);
}

Why overcomplicate it:

var select = document.querySelector('select#id.orClass');
select.addEventListener('change', function(e) {
  console.log(select.value);

  // or if it changes dynamically
  console.log(e.target.value);      
});

 let select = document.getElementById('select_id');
  select.addEventListener('change', function() {
    console.log(select.value);
    // just for test
    alert(select.value);
  });

<select id="select_id">
    <option value="0">-Select-</option>
    <option value="1">Communication</option>
</select>

Use

document.getElementById("select_id").selectedIndex

Or to get the value:

document.getElementById("select_id").value

<script>
function test(a) {
    var x = a.selectedIndex;
    alert(x);
}
</script>
<select onchange="test(this)" id="select_id">
    <option value="0">-Select-</option>
    <option value="1">Communication</option>
    <option value="2">Communication</option>
    <option value="3">Communication</option>
</select>

in the alert you'll see the INT value of the selected index, treat the selection as an array and you'll get the value

        $('#select_id').change(function(){
        // selected value 
        alert($(this).val());
        // selected text 
        alert($(this).find("option:selected").text());
    })

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.0/jquery.min.js"></script>
<select onchange="test()" id="select_id">
        <option value="0">-Select-</option>
        <option value="1">Communication</option>
    </select>

This is an old question, but I am not sure why people didn't suggest using the event object to retrieve the info instead of searching through the DOM again.

Simply go through the event object in your function onChange, see example bellow

function test() { console.log(event.srcElement.value); }

http://jsfiddle.net/Corsico/3yvh9wc6/5/

Might be useful to people looking this up today if this wasn't default behavior 7 years ago

In html

(change)="onChangeCategory($event)"

In javascript/typescript

onChangeCategory(event: any) {
    console.log(event.target.options[event.target.selectedIndex].value);
    console.log(event.target.options[event.target.selectedIndex].text);
}

function test(){
  var sel1 = document.getElementById("select_id");
  var strUser1 = sel1.options[sel1.selectedIndex].value;
  console.log(strUser1);
  alert(strUser1);
  // Inorder to get the Test as value i.e "Communication"
  var sel2 = document.getElementById("select_id");
  var strUser2 = sel2.options[sel2.selectedIndex].text;
  console.log(strUser2);
  alert(strUser2);
}

<select onchange="test()" id="select_id">
  <option value="0">-Select-</option>
  <option value="1">Communication</option>
</select>

You can get the value from the select element by passing "this.value" as a parameter to your function named test(this.value) and after that You should create the function with a parameter inside the script element and finally you can write console.log(number) inside this function to get Your selected value.

function test(number) {
  console.log(number)
}

<!DOCTYPE html>
<html>

<body>

  <p>Select a new car from the list.</p>
  <select onchange="test(this.value)" id="select_id">
    <option value="0">-Select-</option>
    <option value="1">Communication</option>
  </select>

</body>

</html>

Once the onChange is invoked you can add either JS or JQuery Code Snippet to get your thought working.

//Javascript

document.getElementById("select_id").selectedIndex // prints text value of the option
document.getElementById("select_id").value // prints the value of the option 

//JQUERY 

var selected = $('#select_id option:selected').val(); 
// prints the **value** of the option clicked in the dropdown
    
var selected = $('#select_id option:selected').html(); 
// prints the **text** of the option clicked in the dropdown

function test(){
  var sel1 = document.getElementById("select_id");
  var strUser1 = sel1.options[sel1.selectedIndex].value;
  console.log(strUser1);
  alert(strUser1);
  // Inorder to get the Test as value i.e "Communication"
  var sel2 = document.getElementById("select_id");
  var strUser2 = sel2.options[sel2.selectedIndex].text;
  console.log(strUser2);
  alert(strUser2);
}

<select onchange="test()" id="select_id">
  <option value="0">-Select-</option>
  <option value="1">Communication</option>
</select>

var e = document.getElementById("ddlViewBy");
var strUser = e.options[e.selectedIndex].value;

You set the onchange handler to some function or string. In it, you write code to get value

document.getElementById('cphForm_ddlFacility').value;

or, for older browsers

document.getElementById('cphForm_ddlFacility')[document.getElementById('cphForm_ddlFacility').selectedIndex].value

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