set value in select input js 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: 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";