Javascript 在Google文档中添加文本和删除文本（附加组件）

我们有一个Doc的附加组件，它将数据插入到文档中，我们还希望它在您再次单击按钮时删除文本，就像开关一样。正如现在一样，第二次、第三次按下按钮，以此类推。。它在已存在的文本上填充新文本

客户端：

<div class="block" id="button-bar">
          <button onclick="google.script.run.insertTextA();" id="TextA">Text A</button>
          <button onclick="google.script.run.insertTextB();" id="TextB">Text B</button>   
          </div>

function insertTextA() {
 var body = DocumentApp.getActiveDocument().getBody();
 var text = body.editAsText();
 text.insertText(11, 'There is no one who loves pain itself, who seeks after it and wants to have it, simply because it is pain..');                         
}

function insertTextB() {
 var body = DocumentApp.getActiveDocument().getBody();
 var text = body.editAsText();
 text.insertText(12, 'Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old..');
}

试试这个：

function insertTextA() {
 var body = DocumentApp.getActiveDocument().getBody();
 var val = body.findText('There is no one who loves pain itself, who seeks after it and wants to have it, simply because it is pain..');
  if(val == null)
  {
   var text = body.editAsText();
   text.insertText(11, 'There is no one who loves pain itself, who seeks after it and wants to have it, simply because it is pain..');         
  }
  else
  {
    body.replaceText('There is no one who loves pain itself, who seeks after it and wants to have it, simply because it is pain..','');
  }
}

---

您试图删除它的目的是什么？非常有效，谢谢iJay为我指明了正确的方向，如果使用replaceText的if语句也可以，为什么我自己没有想到它：]