duplicates in select-option

by Heena Mahour

HTML

<select id="dup">
  <option value="test">test</option>
  <option value="test">test</option>
  <option value="test1">test1</option>
  <option value="test">test</option>
  <option value="test1">test1</option>
</select>

JavaScript

debugger;
$("#dup option").each(function() {
  $(this).siblings("[value=" + this.value + "]").remove();
});