how to set option in select javascript 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: 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>

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Javascript Example

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