how to clear existing options in dropDown in javascript

by SriSri M

HTML

<select id="dropdownlist">
  <option value="0">0</option>
  <option value="1">1</option>
  <option value="2">2</option>
</select>

JavaScript

var getList = document.getElementById('dropdownlist');
var len = getList.options.length;
console.log(len);
for(i = 0; i<len; i++){
	getList.options[i] = null;
}