Is there a method I can utilize to ensure functionality within Google Apps Script?

I encountered an issue when using innerHTML instead of getBody() and I am looking for assistance with debugging on apps-script as mine is not functioning properly.

 function findText(findme,colour,desc,rule_name) {
  var body = DocumentApp.getActiveDocument().getBody();
  var regExp = case_insensitive(findme);
  var foundElement = body.findText(regExp);
  while (foundElement != null) {
    var foundText = foundElement.getElement().asText();
    var start = foundElement.getStartOffset();
    var end = foundElement.getEndOffsetInclusive();
    foundText.setBackgroundColor(start, end, colour);
    number_oresults++;
    foundElement = body.findText(regExp, foundElement);
    var pusher = '<p><span style="background-color:'+colour+'"><b>'+rule_name+'</b> - '+ desc +'</span></p>';
    results.push(pusher);
   }
}
javascriptgoogle-apps-scriptgoogle-docs

Answer №2

There are instances where using active methods in method chaining can result in errors, such as the one indicated in your screenshot (‘can't read property something of null’). For more information, please refer to How does Class Range react when chained with Class Sheet and returns [[]]?

To resolve this issue, consider replacing:

var body = DocumentApp.getActiveDocument().getBody();

with:

var doc = DocumentApp.getActiveDocument();
var body = doc.getBody();

It is important to note that DocumentApp.getActiveDocument() can only be used in bound scripts or standalone scripts executed as add-ons through Run > Test as add-on..., or by publishing the script as a G Suite Editor add-on for Google Documents and running it from the UI.

PLEASE NOTE: The following code works successfully in a standalone script executed under Run > Test as add-on...

function onOpen(e) {
  DocumentApp.getUi()
  .createAddonMenu()
  .addItem('Test 1', 'doSomething1')
  .addItem('Test 2', 'doSomething2')
  .addToUi()
}

function doSomething1(){
  var body = DocumentApp.getActiveDocument().getBody();
  body.appendParagraph('Test 1');
}

function doSomething2(){
  var doc = DocumentApp.getActiveDocument();
  var body = doc.getBody();
  body.appendParagraph('Test 2');
}

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