js set selected option code example
Example 1: make select option selected javascript
document.getElementById('personlist').getElementsByTagName('option')[11].selected = 'selected'
Example 2: javascript select change selected
const options = Array.from(select.options);
options.forEach((option, i) => {
if (option.value === use_id) select.selectedIndex = i;
});
Example 3: 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";
Example 4: js select option in form
<form name="AddAndEdit">
<select name="list" id="personlist">
<option value="P1">Person1</option>
<option value="P2">Person2</option>
<option value="P3">Person3</option>
</select>
</form>
Example 5: javascript set select option
document.getElementById("mySelectID").value="my_value";
//note: setting value in html directly does not work <select value="my_value">