如果我知道名称，如何从按钮获取id - javascript

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

function handleClick() {
  var buttonId = this.id;
  console.log("Button id: " + buttonId);
}

var button = document.getElementById("myButton");
button.addEventListener("click", handleClick);

function handleClick(event) {
  var buttonId = event.target.id;
  console.log("Button id: " + buttonId);
}

var button = document.getElementById("myButton");
button.addEventListener("click", handleClick);