在 Google 文档中添加文本和删除文本（附加组件）

Question

我们有一个用于 Doc 的插件，它将数据插入到文档中，我们还希望它在您单击 再次 按钮时删除文本，就像一个开关一样。就像现在一样，在第二次、第三次按下按钮时，依此类推......它会在已经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>

服务器端：

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..');
}

Answer 1

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..','');
  }
}