multi select fetch

HTML

<select id="filter" multiple="multiple">
     <option>Yes</option>
     <option>No</option>
</select>

<button id="button">button</button>

JavaScript

var list = document.getElementById("filter");
var button = document.getElementById("button");

button.addEventListener("click", function(e){
	for(var i=0; i<list.length; i++){
  	if(list.options[i].selected) {
    	console.log(list.options[i]);
    };
  };
});