如何在不清除键盘的情况下关闭文本字段中的键盘？

document.getElementById("myButton").addEventListener("click", function() {
  document.getElementById("myTextField").blur();
});

<input type="text" id="myTextField">
<button id="myButton">关闭键盘</button>
<button id="hiddenButton" style="display: none;"></button>

<script>
document.getElementById("myButton").addEventListener("click", function() {
  document.getElementById("hiddenButton").focus();
});
</script>