如何在选中复选框后立即显示结果

<input type="checkbox" id="myCheckbox">选项
<p id="result"></p>

var checkbox = document.getElementById("myCheckbox");
var result = document.getElementById("result");

checkbox.addEventListener("change", function() {
  if (checkbox.checked) {
    result.textContent = "复选框已选中";
  } else {
    result.textContent = "复选框未选中";
  }
});