javascript array from datalist

1var options = document.getElementById('estados').getElementsByTagName('option');
2var optionVals = [], i = 0;
3
4for (i; i < options.length; i += 1) {
5  optionVals.push(options[i].value);
6}
7
8console.log(optionVals);
9

1var my_list=document.getElementById("months");
2my_list.innerHTML = str;

1<input name="month" list="months" >
2<datalist id="months" >
3</datalist>

1alert(my_list.options[5].value);