js combobox selected value code example

Example 1: javascript get selected option

var e = document.getElementById("selectElementID");
var value=e.selectElement.options[e.selectedIndex].value;// get selected option value
var text=e.options[e.selectedIndex].text;//get the selected option text

Example 2: get selected value of dropdown in javascript

<body>
   
   <select id="list" style="padding: 10px;" onchange="getSelectValue();">
     <option value="js">JavaScript</option>
     <option value="php">PHP</option>
     <option value="c#">Csharp</option>
     <option value="java">Java</option>
     <option value="node">Node.js</option>
   </select>
   
    <script>
        function getSelectValue()
        {
            var selectedValue = document.getElementById("list").value;
            alert(selectedValue);
        }
        getSelectValue();
    </script>
 </body>

Example 3: javascript to get value of dropdown

var e = document.getElementById("elementId");
var value = e.options[e.selectedIndex].value;
var text = e.options[e.selectedIndex].text;

Example 4: html get selected option javascript

<select id="ddlViewBy">
  <option value="1">test1</option>
  <option value="2" selected="selected">test2</option>
  <option value="3">test3</option>
</select>

<script>
    var e = document.getElementById("ddlViewBy");
	var strUser = e.value; // 2
	var strUser = e.options[e.selectedIndex].text; //test2
</script>

Example 5: javascript set html select value

// Get the html select element
var select = document.getElementById('<your select element id>');

// If you have a <option> like this:
// <option value="1">My Value Display text</option>

//Then your selected value of your select would be:

select.value = "1";