如何在datalist中获取option的值

<input list="options" id="myInput">
<datalist id="options">
  <option value="Option 1">
  <option value="Option 2">
  <option value="Option 3">
  <option value="Option 4">
</datalist>

<script>
  var input = document.getElementById("myInput");
  var datalist = document.getElementById("options");

  input.addEventListener("input", function() {
    var inputValue = input.value;
    var options = datalist.options;

    for (var i = 0; i < options.length; i++) {
      if (options[i].value === inputValue) {
        var selectedOptionValue = options[i].value;
        console.log("Selected option value: " + selectedOptionValue);
        break;
      }
    }
  });
</script>