如果点击此按钮，如何在按钮下显示div？角度2

<button id="myButton">点击按钮</button>
<div id="myDiv">这是要显示的内容</div>

var button = document.getElementById("myButton");
var div = document.getElementById("myDiv");

button.addEventListener("click", function() {
  if (div.style.display === "none") {
    div.style.display = "block";
  } else {
    div.style.display = "none";
  }
});

#myDiv {
  display: none;
}