当文本框中没有文本时，如何禁用按钮？

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

textBox.addEventListener("input", function() {
  if (textBox.value.trim() === "") {
    button.disabled = true;
  } else {
    button.disabled = false;
  }
});

<input type="text" id="myTextBox" oninput="myButton.disabled = (this.value.trim() === '')">
<button id="myButton" disabled>按钮</button>

$("#myTextBox").on("input", function() {
  if ($(this).val().trim() === "") {
    $("#myButton").prop("disabled", true);
  } else {
    $("#myButton").prop("disabled", false);
  }
});